Home / 402,127.96-554,935.12-220,851.62

Finding the Fourth Proportional to 402,127.96, 554,935.12 and 220,851.62

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Solution

The fourth proportional to 402,127.96, 554,935.12 and 220,851.62 is: 304,774.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,127.96 : 554,935.12 = 220,851.62 : x
  2. Step 2: Convert to fraction form
    402,127.96/554,935.12 = 220,851.62/x
  3. Step 3: Cross multiply
    402,127.96x = 554,935.12 × 220,851.62
  4. Step 4: Simplify right side
    402,127.96x = 122,558,320,246.89
  5. Step 5: Solve for x
    x = 122,558,320,246.89/402,127.96
  6. Step 6: Final answer
    x = 304,774.43

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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.