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Finding the Fourth Proportional to 402,250.49, 555,109.25 and 220,966.10

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Solution

The fourth proportional to 402,250.49, 555,109.25 and 220,966.10 is: 304,935.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,250.49 : 555,109.25 = 220,966.10 : x
  2. Step 2: Convert to fraction form
    402,250.49/555,109.25 = 220,966.10/x
  3. Step 3: Cross multiply
    402,250.49x = 555,109.25 × 220,966.10
  4. Step 4: Simplify right side
    402,250.49x = 122,660,322,166.05
  5. Step 5: Solve for x
    x = 122,660,322,166.05/402,250.49
  6. Step 6: Final answer
    x = 304,935.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.