Home / 257,006.19-385,863.04-130,731.88

Finding the Fourth Proportional to 257,006.19, 385,863.04 and 130,731.88

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Solution

The fourth proportional to 257,006.19, 385,863.04 and 130,731.88 is: 196,277.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,006.19 : 385,863.04 = 130,731.88 : x
  2. Step 2: Convert to fraction form
    257,006.19/385,863.04 = 130,731.88/x
  3. Step 3: Cross multiply
    257,006.19x = 385,863.04 × 130,731.88
  4. Step 4: Simplify right side
    257,006.19x = 50,444,600,641.72
  5. Step 5: Solve for x
    x = 50,444,600,641.72/257,006.19
  6. Step 6: Final answer
    x = 196,277.77

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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.