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Finding the Fourth Proportional to 275,430.10, 413,145.15 and 230,815.30

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Solution

The fourth proportional to 275,430.10, 413,145.15 and 230,815.30 is: 346,222.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,430.10 : 413,145.15 = 230,815.30 : x
  2. Step 2: Convert to fraction form
    275,430.10/413,145.15 = 230,815.30/x
  3. Step 3: Cross multiply
    275,430.10x = 413,145.15 × 230,815.30
  4. Step 4: Simplify right side
    275,430.10x = 95,360,221,740.80
  5. Step 5: Solve for x
    x = 95,360,221,740.80/275,430.10
  6. Step 6: Final answer
    x = 346,222.95

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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.