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Finding the Fourth Proportional to 177,382.80, 266,074.20 and 142,390.80

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Solution

The fourth proportional to 177,382.80, 266,074.20 and 142,390.80 is: 213,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,382.80 : 266,074.20 = 142,390.80 : x
  2. Step 2: Convert to fraction form
    177,382.80/266,074.20 = 142,390.80/x
  3. Step 3: Cross multiply
    177,382.80x = 266,074.20 × 142,390.80
  4. Step 4: Simplify right side
    177,382.80x = 37,886,518,197.36
  5. Step 5: Solve for x
    x = 37,886,518,197.36/177,382.80
  6. Step 6: Final answer
    x = 213,586.20

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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.