Home / 372,210.40-558,315.60-355,103.20

Finding the Fourth Proportional to 372,210.40, 558,315.60 and 355,103.20

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Solution

The fourth proportional to 372,210.40, 558,315.60 and 355,103.20 is: 532,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,210.40 : 558,315.60 = 355,103.20 : x
  2. Step 2: Convert to fraction form
    372,210.40/558,315.60 = 355,103.20/x
  3. Step 3: Cross multiply
    372,210.40x = 558,315.60 × 355,103.20
  4. Step 4: Simplify right side
    372,210.40x = 198,259,656,169.92
  5. Step 5: Solve for x
    x = 198,259,656,169.92/372,210.40
  6. Step 6: Final answer
    x = 532,654.80

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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.