Home / 398,924.20-550,447.68-237,776.32

Finding the Fourth Proportional to 398,924.20, 550,447.68 and 237,776.32

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Solution

The fourth proportional to 398,924.20, 550,447.68 and 237,776.32 is: 328,090.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,924.20 : 550,447.68 = 237,776.32 : x
  2. Step 2: Convert to fraction form
    398,924.20/550,447.68 = 237,776.32/x
  3. Step 3: Cross multiply
    398,924.20x = 550,447.68 × 237,776.32
  4. Step 4: Simplify right side
    398,924.20x = 130,883,423,702.94
  5. Step 5: Solve for x
    x = 130,883,423,702.94/398,924.20
  6. Step 6: Final answer
    x = 328,090.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.