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Finding the Fourth Proportional to 177,344.20, 266,016.30 and 117,987.40

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Solution

The fourth proportional to 177,344.20, 266,016.30 and 117,987.40 is: 176,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,344.20 : 266,016.30 = 117,987.40 : x
  2. Step 2: Convert to fraction form
    177,344.20/266,016.30 = 117,987.40/x
  3. Step 3: Cross multiply
    177,344.20x = 266,016.30 × 117,987.40
  4. Step 4: Simplify right side
    177,344.20x = 31,386,571,594.62
  5. Step 5: Solve for x
    x = 31,386,571,594.62/177,344.20
  6. Step 6: Final answer
    x = 176,981.10

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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.