Home / 282,951.39-390,275.20-192,149.72

Finding the Fourth Proportional to 282,951.39, 390,275.20 and 192,149.72

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Solution

The fourth proportional to 282,951.39, 390,275.20 and 192,149.72 is: 265,032.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,951.39 : 390,275.20 = 192,149.72 : x
  2. Step 2: Convert to fraction form
    282,951.39/390,275.20 = 192,149.72/x
  3. Step 3: Cross multiply
    282,951.39x = 390,275.20 × 192,149.72
  4. Step 4: Simplify right side
    282,951.39x = 74,991,270,402.94
  5. Step 5: Solve for x
    x = 74,991,270,402.94/282,951.39
  6. Step 6: Final answer
    x = 265,032.34

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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.