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Finding the Fourth Proportional to 177,416.60, 266,124.90 and 121,429.40

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Solution

The fourth proportional to 177,416.60, 266,124.90 and 121,429.40 is: 182,144.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,416.60 : 266,124.90 = 121,429.40 : x
  2. Step 2: Convert to fraction form
    177,416.60/266,124.90 = 121,429.40/x
  3. Step 3: Cross multiply
    177,416.60x = 266,124.90 × 121,429.40
  4. Step 4: Simplify right side
    177,416.60x = 32,315,386,932.06
  5. Step 5: Solve for x
    x = 32,315,386,932.06/177,416.60
  6. Step 6: Final answer
    x = 182,144.10

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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.