Home / 288,979.16-433,284.14-138,920.85

Finding the Fourth Proportional to 288,979.16, 433,284.14 and 138,920.85

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Solution

The fourth proportional to 288,979.16, 433,284.14 and 138,920.85 is: 208,292.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,979.16 : 433,284.14 = 138,920.85 : x
  2. Step 2: Convert to fraction form
    288,979.16/433,284.14 = 138,920.85/x
  3. Step 3: Cross multiply
    288,979.16x = 433,284.14 × 138,920.85
  4. Step 4: Simplify right side
    288,979.16x = 60,192,200,325.71
  5. Step 5: Solve for x
    x = 60,192,200,325.71/288,979.16
  6. Step 6: Final answer
    x = 208,292.53

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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.