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Finding the Fourth Proportional to 177,320.60, 265,980.90 and 84,008.60

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Solution

The fourth proportional to 177,320.60, 265,980.90 and 84,008.60 is: 126,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,320.60 : 265,980.90 = 84,008.60 : x
  2. Step 2: Convert to fraction form
    177,320.60/265,980.90 = 84,008.60/x
  3. Step 3: Cross multiply
    177,320.60x = 265,980.90 × 84,008.60
  4. Step 4: Simplify right side
    177,320.60x = 22,344,683,035.74
  5. Step 5: Solve for x
    x = 22,344,683,035.74/177,320.60
  6. Step 6: Final answer
    x = 126,012.90

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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.