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Finding the Fourth Proportional to 178,002.80, 266,485.80 and 172,818.80

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Solution

The fourth proportional to 178,002.80, 266,485.80 and 172,818.80 is: 258,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,002.80 : 266,485.80 = 172,818.80 : x
  2. Step 2: Convert to fraction form
    178,002.80/266,485.80 = 172,818.80/x
  3. Step 3: Cross multiply
    178,002.80x = 266,485.80 × 172,818.80
  4. Step 4: Simplify right side
    178,002.80x = 46,053,756,173.04
  5. Step 5: Solve for x
    x = 46,053,756,173.04/178,002.80
  6. Step 6: Final answer
    x = 258,724.90

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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.