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Finding the Fourth Proportional to 248,002.70, 372,004.05 and 129,710.30

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Solution

The fourth proportional to 248,002.70, 372,004.05 and 129,710.30 is: 194,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,002.70 : 372,004.05 = 129,710.30 : x
  2. Step 2: Convert to fraction form
    248,002.70/372,004.05 = 129,710.30/x
  3. Step 3: Cross multiply
    248,002.70x = 372,004.05 × 129,710.30
  4. Step 4: Simplify right side
    248,002.70x = 48,252,756,926.72
  5. Step 5: Solve for x
    x = 48,252,756,926.72/248,002.70
  6. Step 6: Final answer
    x = 194,565.45

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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.