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Finding the Fourth Proportional to 550,302.48, 825,315.12 and 213,227.28

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Solution

The fourth proportional to 550,302.48, 825,315.12 and 213,227.28 is: 319,787.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,302.48 : 825,315.12 = 213,227.28 : x
  2. Step 2: Convert to fraction form
    550,302.48/825,315.12 = 213,227.28/x
  3. Step 3: Cross multiply
    550,302.48x = 825,315.12 × 213,227.28
  4. Step 4: Simplify right side
    550,302.48x = 175,979,698,180.47
  5. Step 5: Solve for x
    x = 175,979,698,180.47/550,302.48
  6. Step 6: Final answer
    x = 319,787.22

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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.