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Finding the Fourth Proportional to 290,337.38, 435,284.58 and 132,455.42

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Solution

The fourth proportional to 290,337.38, 435,284.58 and 132,455.42 is: 198,582.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,337.38 : 435,284.58 = 132,455.42 : x
  2. Step 2: Convert to fraction form
    290,337.38/435,284.58 = 132,455.42/x
  3. Step 3: Cross multiply
    290,337.38x = 435,284.58 × 132,455.42
  4. Step 4: Simplify right side
    290,337.38x = 57,655,801,863.42
  5. Step 5: Solve for x
    x = 57,655,801,863.42/290,337.38
  6. Step 6: Final answer
    x = 198,582.08

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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.