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Finding the Fourth Proportional to 285,253.04, 427,646.28 and 107,658.92

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Solution

The fourth proportional to 285,253.04, 427,646.28 and 107,658.92 is: 161,400.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,253.04 : 427,646.28 = 107,658.92 : x
  2. Step 2: Convert to fraction form
    285,253.04/427,646.28 = 107,658.92/x
  3. Step 3: Cross multiply
    285,253.04x = 427,646.28 × 107,658.92
  4. Step 4: Simplify right side
    285,253.04x = 46,039,936,646.82
  5. Step 5: Solve for x
    x = 46,039,936,646.82/285,253.04
  6. Step 6: Final answer
    x = 161,400.34

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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.