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Finding the Fourth Proportional to 138,280.60, 207,420.90 and 44,795.80

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Solution

The fourth proportional to 138,280.60, 207,420.90 and 44,795.80 is: 67,193.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,280.60 : 207,420.90 = 44,795.80 : x
  2. Step 2: Convert to fraction form
    138,280.60/207,420.90 = 44,795.80/x
  3. Step 3: Cross multiply
    138,280.60x = 207,420.90 × 44,795.80
  4. Step 4: Simplify right side
    138,280.60x = 9,291,585,152.22
  5. Step 5: Solve for x
    x = 9,291,585,152.22/138,280.60
  6. Step 6: Final answer
    x = 67,193.70

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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.