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Finding the Fourth Proportional to 238,019.86, 357,031.02 and 80,249.68

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Solution

The fourth proportional to 238,019.86, 357,031.02 and 80,249.68 is: 120,374.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,019.86 : 357,031.02 = 80,249.68 : x
  2. Step 2: Convert to fraction form
    238,019.86/357,031.02 = 80,249.68/x
  3. Step 3: Cross multiply
    238,019.86x = 357,031.02 × 80,249.68
  4. Step 4: Simplify right side
    238,019.86x = 28,651,624,703.83
  5. Step 5: Solve for x
    x = 28,651,624,703.83/238,019.86
  6. Step 6: Final answer
    x = 120,374.93

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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.