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Finding the Fourth Proportional to 118,272.80, 177,344.40 and 39,346.40

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Solution

The fourth proportional to 118,272.80, 177,344.40 and 39,346.40 is: 58,998.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,272.80 : 177,344.40 = 39,346.40 : x
  2. Step 2: Convert to fraction form
    118,272.80/177,344.40 = 39,346.40/x
  3. Step 3: Cross multiply
    118,272.80x = 177,344.40 × 39,346.40
  4. Step 4: Simplify right side
    118,272.80x = 6,977,863,700.16
  5. Step 5: Solve for x
    x = 6,977,863,700.16/118,272.80
  6. Step 6: Final answer
    x = 58,998.04

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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.