Home / 402,721.76-603,987.26-150,120.83

Finding the Fourth Proportional to 402,721.76, 603,987.26 and 150,120.83

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Solution

The fourth proportional to 402,721.76, 603,987.26 and 150,120.83 is: 225,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,721.76 : 603,987.26 = 150,120.83 : x
  2. Step 2: Convert to fraction form
    402,721.76/603,987.26 = 150,120.83/x
  3. Step 3: Cross multiply
    402,721.76x = 603,987.26 × 150,120.83
  4. Step 4: Simplify right side
    402,721.76x = 90,671,069,539.99
  5. Step 5: Solve for x
    x = 90,671,069,539.99/402,721.76
  6. Step 6: Final answer
    x = 225,145.69

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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.