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Finding the Fourth Proportional to 220,527.01, 304,340.55 and 129,943.40

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Solution

The fourth proportional to 220,527.01, 304,340.55 and 129,943.40 is: 179,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,527.01 : 304,340.55 = 129,943.40 : x
  2. Step 2: Convert to fraction form
    220,527.01/304,340.55 = 129,943.40/x
  3. Step 3: Cross multiply
    220,527.01x = 304,340.55 × 129,943.40
  4. Step 4: Simplify right side
    220,527.01x = 39,547,044,303.17
  5. Step 5: Solve for x
    x = 39,547,044,303.17/220,527.01
  6. Step 6: Final answer
    x = 179,329.71

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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.