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Finding the Fourth Proportional to 325,333.10, 487,999.65 and 213,718.70

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Solution

The fourth proportional to 325,333.10, 487,999.65 and 213,718.70 is: 320,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,333.10 : 487,999.65 = 213,718.70 : x
  2. Step 2: Convert to fraction form
    325,333.10/487,999.65 = 213,718.70/x
  3. Step 3: Cross multiply
    325,333.10x = 487,999.65 × 213,718.70
  4. Step 4: Simplify right side
    325,333.10x = 104,294,650,798.46
  5. Step 5: Solve for x
    x = 104,294,650,798.46/325,333.10
  6. Step 6: Final answer
    x = 320,578.05

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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.