Home / 431,284.17-647,024.67-131,807.33

Finding the Fourth Proportional to 431,284.17, 647,024.67 and 131,807.33

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Solution

The fourth proportional to 431,284.17, 647,024.67 and 131,807.33 is: 197,741.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,284.17 : 647,024.67 = 131,807.33 : x
  2. Step 2: Convert to fraction form
    431,284.17/647,024.67 = 131,807.33/x
  3. Step 3: Cross multiply
    431,284.17x = 647,024.67 × 131,807.33
  4. Step 4: Simplify right side
    431,284.17x = 85,282,590,961.71
  5. Step 5: Solve for x
    x = 85,282,590,961.71/431,284.17
  6. Step 6: Final answer
    x = 197,741.06

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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.