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Finding the Fourth Proportional to 201,847.68, 278,562.24 and 112,423.68

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Solution

The fourth proportional to 201,847.68, 278,562.24 and 112,423.68 is: 155,151.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,847.68 : 278,562.24 = 112,423.68 : x
  2. Step 2: Convert to fraction form
    201,847.68/278,562.24 = 112,423.68/x
  3. Step 3: Cross multiply
    201,847.68x = 278,562.24 × 112,423.68
  4. Step 4: Simplify right side
    201,847.68x = 31,316,992,129.84
  5. Step 5: Solve for x
    x = 31,316,992,129.84/201,847.68
  6. Step 6: Final answer
    x = 155,151.61

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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.