Home / 439,803.20-659,618.40-144,315.20

Finding the Fourth Proportional to 439,803.20, 659,618.40 and 144,315.20

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Solution

The fourth proportional to 439,803.20, 659,618.40 and 144,315.20 is: 216,444.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,803.20 : 659,618.40 = 144,315.20 : x
  2. Step 2: Convert to fraction form
    439,803.20/659,618.40 = 144,315.20/x
  3. Step 3: Cross multiply
    439,803.20x = 659,618.40 × 144,315.20
  4. Step 4: Simplify right side
    439,803.20x = 95,192,961,319.68
  5. Step 5: Solve for x
    x = 95,192,961,319.68/439,803.20
  6. Step 6: Final answer
    x = 216,444.45

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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.