Home / 215,577.40-323,366.10-213,503.80

Finding the Fourth Proportional to 215,577.40, 323,366.10 and 213,503.80

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Solution

The fourth proportional to 215,577.40, 323,366.10 and 213,503.80 is: 320,255.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,577.40 : 323,366.10 = 213,503.80 : x
  2. Step 2: Convert to fraction form
    215,577.40/323,366.10 = 213,503.80/x
  3. Step 3: Cross multiply
    215,577.40x = 323,366.10 × 213,503.80
  4. Step 4: Simplify right side
    215,577.40x = 69,039,891,141.18
  5. Step 5: Solve for x
    x = 69,039,891,141.18/215,577.40
  6. Step 6: Final answer
    x = 320,255.70

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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.