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Finding the Fourth Proportional to 542,238.10, 813,357.15 and 262,302.10

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Solution

The fourth proportional to 542,238.10, 813,357.15 and 262,302.10 is: 393,453.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,238.10 : 813,357.15 = 262,302.10 : x
  2. Step 2: Convert to fraction form
    542,238.10/813,357.15 = 262,302.10/x
  3. Step 3: Cross multiply
    542,238.10x = 813,357.15 × 262,302.10
  4. Step 4: Simplify right side
    542,238.10x = 213,345,288,495.02
  5. Step 5: Solve for x
    x = 213,345,288,495.02/542,238.10
  6. Step 6: Final answer
    x = 393,453.15

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Similar ratio
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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.