Home / 658,215.20-987,322.80-159,579.20

Finding the Fourth Proportional to 658,215.20, 987,322.80 and 159,579.20

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Solution

The fourth proportional to 658,215.20, 987,322.80 and 159,579.20 is: 239,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,215.20 : 987,322.80 = 159,579.20 : x
  2. Step 2: Convert to fraction form
    658,215.20/987,322.80 = 159,579.20/x
  3. Step 3: Cross multiply
    658,215.20x = 987,322.80 × 159,579.20
  4. Step 4: Simplify right side
    658,215.20x = 157,556,182,565.76
  5. Step 5: Solve for x
    x = 157,556,182,565.76/658,215.20
  6. Step 6: Final answer
    x = 239,368.80

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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.