Home / 386,520.52-579,953.40-149,881.72

Finding the Fourth Proportional to 386,520.52, 579,953.40 and 149,881.72

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Solution

The fourth proportional to 386,520.52, 579,953.40 and 149,881.72 is: 224,889.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,520.52 : 579,953.40 = 149,881.72 : x
  2. Step 2: Convert to fraction form
    386,520.52/579,953.40 = 149,881.72/x
  3. Step 3: Cross multiply
    386,520.52x = 579,953.40 × 149,881.72
  4. Step 4: Simplify right side
    386,520.52x = 86,924,413,111.85
  5. Step 5: Solve for x
    x = 86,924,413,111.85/386,520.52
  6. Step 6: Final answer
    x = 224,889.52

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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.