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Finding the Fourth Proportional to 220,304.79, 304,019.87 and 124,829.69

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Solution

The fourth proportional to 220,304.79, 304,019.87 and 124,829.69 is: 172,264.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,304.79 : 304,019.87 = 124,829.69 : x
  2. Step 2: Convert to fraction form
    220,304.79/304,019.87 = 124,829.69/x
  3. Step 3: Cross multiply
    220,304.79x = 304,019.87 × 124,829.69
  4. Step 4: Simplify right side
    220,304.79x = 37,950,703,981.69
  5. Step 5: Solve for x
    x = 37,950,703,981.69/220,304.79
  6. Step 6: Final answer
    x = 172,264.54

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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.