Home / 657,002.20-985,503.30-213,770.20

Finding the Fourth Proportional to 657,002.20, 985,503.30 and 213,770.20

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Solution

The fourth proportional to 657,002.20, 985,503.30 and 213,770.20 is: 320,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,002.20 : 985,503.30 = 213,770.20 : x
  2. Step 2: Convert to fraction form
    657,002.20/985,503.30 = 213,770.20/x
  3. Step 3: Cross multiply
    657,002.20x = 985,503.30 × 213,770.20
  4. Step 4: Simplify right side
    657,002.20x = 210,671,237,541.66
  5. Step 5: Solve for x
    x = 210,671,237,541.66/657,002.20
  6. Step 6: Final answer
    x = 320,655.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.