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Finding the Fourth Proportional to 180,987.20, 271,480.80 and 118,001.60

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Solution

The fourth proportional to 180,987.20, 271,480.80 and 118,001.60 is: 177,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,987.20 : 271,480.80 = 118,001.60 : x
  2. Step 2: Convert to fraction form
    180,987.20/271,480.80 = 118,001.60/x
  3. Step 3: Cross multiply
    180,987.20x = 271,480.80 × 118,001.60
  4. Step 4: Simplify right side
    180,987.20x = 32,035,168,769.28
  5. Step 5: Solve for x
    x = 32,035,168,769.28/180,987.20
  6. Step 6: Final answer
    x = 177,002.40

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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.