Home / 268,333.19-402,572.38-90,840.22

Finding the Fourth Proportional to 268,333.19, 402,572.38 and 90,840.22

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Solution

The fourth proportional to 268,333.19, 402,572.38 and 90,840.22 is: 136,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,333.19 : 402,572.38 = 90,840.22 : x
  2. Step 2: Convert to fraction form
    268,333.19/402,572.38 = 90,840.22/x
  3. Step 3: Cross multiply
    268,333.19x = 402,572.38 × 90,840.22
  4. Step 4: Simplify right side
    268,333.19x = 36,569,761,325.16
  5. Step 5: Solve for x
    x = 36,569,761,325.16/268,333.19
  6. Step 6: Final answer
    x = 136,284.90

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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.