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Finding the Fourth Proportional to 484,346.90, 726,547.68 and 147,398.54

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Solution

The fourth proportional to 484,346.90, 726,547.68 and 147,398.54 is: 221,106.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,346.90 : 726,547.68 = 147,398.54 : x
  2. Step 2: Convert to fraction form
    484,346.90/726,547.68 = 147,398.54/x
  3. Step 3: Cross multiply
    484,346.90x = 726,547.68 × 147,398.54
  4. Step 4: Simplify right side
    484,346.90x = 107,092,067,272.39
  5. Step 5: Solve for x
    x = 107,092,067,272.39/484,346.90
  6. Step 6: Final answer
    x = 221,106.13

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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.