Home / 399,854.07-599,818.69-147,139.39

Finding the Fourth Proportional to 399,854.07, 599,818.69 and 147,139.39

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Solution

The fourth proportional to 399,854.07, 599,818.69 and 147,139.39 is: 220,722.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,854.07 : 599,818.69 = 147,139.39 : x
  2. Step 2: Convert to fraction form
    399,854.07/599,818.69 = 147,139.39/x
  3. Step 3: Cross multiply
    399,854.07x = 599,818.69 × 147,139.39
  4. Step 4: Simplify right side
    399,854.07x = 88,256,954,130.75
  5. Step 5: Solve for x
    x = 88,256,954,130.75/399,854.07
  6. Step 6: Final answer
    x = 220,722.91

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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.