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Finding the Fourth Proportional to 465,302.16, 698,001.79 and 128,342.87

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Solution

The fourth proportional to 465,302.16, 698,001.79 and 128,342.87 is: 192,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,302.16 : 698,001.79 = 128,342.87 : x
  2. Step 2: Convert to fraction form
    465,302.16/698,001.79 = 128,342.87/x
  3. Step 3: Cross multiply
    465,302.16x = 698,001.79 × 128,342.87
  4. Step 4: Simplify right side
    465,302.16x = 89,583,552,993.74
  5. Step 5: Solve for x
    x = 89,583,552,993.74/465,302.16
  6. Step 6: Final answer
    x = 192,527.70

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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.