Home / 439,823.20-659,648.40-144,335.20

Finding the Fourth Proportional to 439,823.20, 659,648.40 and 144,335.20

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Solution

The fourth proportional to 439,823.20, 659,648.40 and 144,335.20 is: 216,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,823.20 : 659,648.40 = 144,335.20 : x
  2. Step 2: Convert to fraction form
    439,823.20/659,648.40 = 144,335.20/x
  3. Step 3: Cross multiply
    439,823.20x = 659,648.40 × 144,335.20
  4. Step 4: Simplify right side
    439,823.20x = 95,210,483,743.68
  5. Step 5: Solve for x
    x = 95,210,483,743.68/439,823.20
  6. Step 6: Final answer
    x = 216,474.45

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1.5x scale

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.