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Finding the Fourth Proportional to 381,617.77, 572,442.22 and 97,315.69

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Solution

The fourth proportional to 381,617.77, 572,442.22 and 97,315.69 is: 145,977.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,617.77 : 572,442.22 = 97,315.69 : x
  2. Step 2: Convert to fraction form
    381,617.77/572,442.22 = 97,315.69/x
  3. Step 3: Cross multiply
    381,617.77x = 572,442.22 × 97,315.69
  4. Step 4: Simplify right side
    381,617.77x = 55,707,609,624.43
  5. Step 5: Solve for x
    x = 55,707,609,624.43/381,617.77
  6. Step 6: Final answer
    x = 145,977.50

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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.