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Finding the Fourth Proportional to 332,186.80, 497,761.80 and 287,604.40

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Solution

The fourth proportional to 332,186.80, 497,761.80 and 287,604.40 is: 430,957.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,186.80 : 497,761.80 = 287,604.40 : x
  2. Step 2: Convert to fraction form
    332,186.80/497,761.80 = 287,604.40/x
  3. Step 3: Cross multiply
    332,186.80x = 497,761.80 × 287,604.40
  4. Step 4: Simplify right side
    332,186.80x = 143,158,483,831.92
  5. Step 5: Solve for x
    x = 143,158,483,831.92/332,186.80
  6. Step 6: Final answer
    x = 430,957.77

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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.