Home / 268,363.20-402,521.58-90,866.28

Finding the Fourth Proportional to 268,363.20, 402,521.58 and 90,866.28

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Solution

The fourth proportional to 268,363.20, 402,521.58 and 90,866.28 is: 136,291.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,363.20 : 402,521.58 = 90,866.28 : x
  2. Step 2: Convert to fraction form
    268,363.20/402,521.58 = 90,866.28/x
  3. Step 3: Cross multiply
    268,363.20x = 402,521.58 × 90,866.28
  4. Step 4: Simplify right side
    268,363.20x = 36,575,638,594.32
  5. Step 5: Solve for x
    x = 36,575,638,594.32/268,363.20
  6. Step 6: Final answer
    x = 136,291.56

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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.