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Finding the Fourth Proportional to 401,901.91, 602,385.39 and 148,987.66

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Solution

The fourth proportional to 401,901.91, 602,385.39 and 148,987.66 is: 223,308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,901.91 : 602,385.39 = 148,987.66 : x
  2. Step 2: Convert to fraction form
    401,901.91/602,385.39 = 148,987.66/x
  3. Step 3: Cross multiply
    401,901.91x = 602,385.39 × 148,987.66
  4. Step 4: Simplify right side
    401,901.91x = 89,747,988,929.35
  5. Step 5: Solve for x
    x = 89,747,988,929.35/401,901.91
  6. Step 6: Final answer
    x = 223,308.19

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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.