Home / 282,708.40-423,490.08-130,689.52

Finding the Fourth Proportional to 282,708.40, 423,490.08 and 130,689.52

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Solution

The fourth proportional to 282,708.40, 423,490.08 and 130,689.52 is: 195,769.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,708.40 : 423,490.08 = 130,689.52 : x
  2. Step 2: Convert to fraction form
    282,708.40/423,490.08 = 130,689.52/x
  3. Step 3: Cross multiply
    282,708.40x = 423,490.08 × 130,689.52
  4. Step 4: Simplify right side
    282,708.40x = 55,345,715,279.96
  5. Step 5: Solve for x
    x = 55,345,715,279.96/282,708.40
  6. Step 6: Final answer
    x = 195,769.62

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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.