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Finding the Fourth Proportional to 118,308.28, 177,400.56 and 43,409.20

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Solution

The fourth proportional to 118,308.28, 177,400.56 and 43,409.20 is: 65,091.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,308.28 : 177,400.56 = 43,409.20 : x
  2. Step 2: Convert to fraction form
    118,308.28/177,400.56 = 43,409.20/x
  3. Step 3: Cross multiply
    118,308.28x = 177,400.56 × 43,409.20
  4. Step 4: Simplify right side
    118,308.28x = 7,700,816,389.15
  5. Step 5: Solve for x
    x = 7,700,816,389.15/118,308.28
  6. Step 6: Final answer
    x = 65,091.10

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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.