Home / 288,002.20-432,003.30-248,603.80

Finding the Fourth Proportional to 288,002.20, 432,003.30 and 248,603.80

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Solution

The fourth proportional to 288,002.20, 432,003.30 and 248,603.80 is: 372,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,002.20 : 432,003.30 = 248,603.80 : x
  2. Step 2: Convert to fraction form
    288,002.20/432,003.30 = 248,603.80/x
  3. Step 3: Cross multiply
    288,002.20x = 432,003.30 × 248,603.80
  4. Step 4: Simplify right side
    288,002.20x = 107,397,661,992.54
  5. Step 5: Solve for x
    x = 107,397,661,992.54/288,002.20
  6. Step 6: Final answer
    x = 372,905.70

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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.