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Finding the Fourth Proportional to 178,000.30, 266,482.05 and 172,816.30

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Solution

The fourth proportional to 178,000.30, 266,482.05 and 172,816.30 is: 258,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,000.30 : 266,482.05 = 172,816.30 : x
  2. Step 2: Convert to fraction form
    178,000.30/266,482.05 = 172,816.30/x
  3. Step 3: Cross multiply
    178,000.30x = 266,482.05 × 172,816.30
  4. Step 4: Simplify right side
    178,000.30x = 46,052,441,897.42
  5. Step 5: Solve for x
    x = 46,052,441,897.42/178,000.30
  6. Step 6: Final answer
    x = 258,721.15

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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.