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Finding the Fourth Proportional to 243,375.40, 365,063.10 and 172,516.60

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Solution

The fourth proportional to 243,375.40, 365,063.10 and 172,516.60 is: 258,774.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,375.40 : 365,063.10 = 172,516.60 : x
  2. Step 2: Convert to fraction form
    243,375.40/365,063.10 = 172,516.60/x
  3. Step 3: Cross multiply
    243,375.40x = 365,063.10 × 172,516.60
  4. Step 4: Simplify right side
    243,375.40x = 62,979,444,797.46
  5. Step 5: Solve for x
    x = 62,979,444,797.46/243,375.40
  6. Step 6: Final answer
    x = 258,774.90

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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.