Home / 398,772.12-550,283.91-226,666.20

Finding the Fourth Proportional to 398,772.12, 550,283.91 and 226,666.20

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Solution

The fourth proportional to 398,772.12, 550,283.91 and 226,666.20 is: 312,787.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,772.12 : 550,283.91 = 226,666.20 : x
  2. Step 2: Convert to fraction form
    398,772.12/550,283.91 = 226,666.20/x
  3. Step 3: Cross multiply
    398,772.12x = 550,283.91 × 226,666.20
  4. Step 4: Simplify right side
    398,772.12x = 124,730,762,800.84
  5. Step 5: Solve for x
    x = 124,730,762,800.84/398,772.12
  6. Step 6: Final answer
    x = 312,787.07

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1.5x scale

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.