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Finding the Fourth Proportional to 295,331.60, 442,487.10 and 137,235.80

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Solution

The fourth proportional to 295,331.60, 442,487.10 and 137,235.80 is: 205,616.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,331.60 : 442,487.10 = 137,235.80 : x
  2. Step 2: Convert to fraction form
    295,331.60/442,487.10 = 137,235.80/x
  3. Step 3: Cross multiply
    295,331.60x = 442,487.10 × 137,235.80
  4. Step 4: Simplify right side
    295,331.60x = 60,725,071,158.18
  5. Step 5: Solve for x
    x = 60,725,071,158.18/295,331.60
  6. Step 6: Final answer
    x = 205,616.57

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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.