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Finding the Fourth Proportional to 393,037.96, 542,238.40 and 241,872.52

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Solution

The fourth proportional to 393,037.96, 542,238.40 and 241,872.52 is: 333,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,037.96 : 542,238.40 = 241,872.52 : x
  2. Step 2: Convert to fraction form
    393,037.96/542,238.40 = 241,872.52/x
  3. Step 3: Cross multiply
    393,037.96x = 542,238.40 × 241,872.52
  4. Step 4: Simplify right side
    393,037.96x = 131,152,568,248.77
  5. Step 5: Solve for x
    x = 131,152,568,248.77/393,037.96
  6. Step 6: Final answer
    x = 333,689.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.