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Finding the Fourth Proportional to 275,554.10, 412,937.55 and 156,974.90

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Solution

The fourth proportional to 275,554.10, 412,937.55 and 156,974.90 is: 235,238.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,554.10 : 412,937.55 = 156,974.90 : x
  2. Step 2: Convert to fraction form
    275,554.10/412,937.55 = 156,974.90/x
  3. Step 3: Cross multiply
    275,554.10x = 412,937.55 × 156,974.90
  4. Step 4: Simplify right side
    275,554.10x = 64,820,830,617.50
  5. Step 5: Solve for x
    x = 64,820,830,617.50/275,554.10
  6. Step 6: Final answer
    x = 235,238.13

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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.