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Finding the Fourth Proportional to 385,063.08, 577,693.02 and 148,342.28

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Solution

The fourth proportional to 385,063.08, 577,693.02 and 148,342.28 is: 222,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,063.08 : 577,693.02 = 148,342.28 : x
  2. Step 2: Convert to fraction form
    385,063.08/577,693.02 = 148,342.28/x
  3. Step 3: Cross multiply
    385,063.08x = 577,693.02 × 148,342.28
  4. Step 4: Simplify right side
    385,063.08x = 85,696,299,726.89
  5. Step 5: Solve for x
    x = 85,696,299,726.89/385,063.08
  6. Step 6: Final answer
    x = 222,551.33

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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.