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Finding the Fourth Proportional to 208,657.97, 312,500.18 and 152,358.42

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Solution

The fourth proportional to 208,657.97, 312,500.18 and 152,358.42 is: 228,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,657.97 : 312,500.18 = 152,358.42 : x
  2. Step 2: Convert to fraction form
    208,657.97/312,500.18 = 152,358.42/x
  3. Step 3: Cross multiply
    208,657.97x = 312,500.18 × 152,358.42
  4. Step 4: Simplify right side
    208,657.97x = 47,612,032,612.46
  5. Step 5: Solve for x
    x = 47,612,032,612.46/208,657.97
  6. Step 6: Final answer
    x = 228,182.19

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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.