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Finding the Fourth Proportional to 465,463.60, 698,235.36 and 128,504.20

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Solution

The fourth proportional to 465,463.60, 698,235.36 and 128,504.20 is: 192,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,463.60 : 698,235.36 = 128,504.20 : x
  2. Step 2: Convert to fraction form
    465,463.60/698,235.36 = 128,504.20/x
  3. Step 3: Cross multiply
    465,463.60x = 698,235.36 × 128,504.20
  4. Step 4: Simplify right side
    465,463.60x = 89,726,176,348.51
  5. Step 5: Solve for x
    x = 89,726,176,348.51/465,463.60
  6. Step 6: Final answer
    x = 192,767.33

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1.5x scale

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.