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Finding the Fourth Proportional to 178,054.80, 266,952.60 and 72,819.60

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Solution

The fourth proportional to 178,054.80, 266,952.60 and 72,819.60 is: 109,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,054.80 : 266,952.60 = 72,819.60 : x
  2. Step 2: Convert to fraction form
    178,054.80/266,952.60 = 72,819.60/x
  3. Step 3: Cross multiply
    178,054.80x = 266,952.60 × 72,819.60
  4. Step 4: Simplify right side
    178,054.80x = 19,439,381,550.96
  5. Step 5: Solve for x
    x = 19,439,381,550.96/178,054.80
  6. Step 6: Final answer
    x = 109,176.40

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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.