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Finding the Fourth Proportional to 177,377.60, 266,066.40 and 78,881.60

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Solution

The fourth proportional to 177,377.60, 266,066.40 and 78,881.60 is: 118,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,377.60 : 266,066.40 = 78,881.60 : x
  2. Step 2: Convert to fraction form
    177,377.60/266,066.40 = 78,881.60/x
  3. Step 3: Cross multiply
    177,377.60x = 266,066.40 × 78,881.60
  4. Step 4: Simplify right side
    177,377.60x = 20,987,743,338.24
  5. Step 5: Solve for x
    x = 20,987,743,338.24/177,377.60
  6. Step 6: Final answer
    x = 118,322.40

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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.