Home / 268,482.20-402,695.56-90,984.60

Finding the Fourth Proportional to 268,482.20, 402,695.56 and 90,984.60

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Solution

The fourth proportional to 268,482.20, 402,695.56 and 90,984.60 is: 136,467.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,482.20 : 402,695.56 = 90,984.60 : x
  2. Step 2: Convert to fraction form
    268,482.20/402,695.56 = 90,984.60/x
  3. Step 3: Cross multiply
    268,482.20x = 402,695.56 × 90,984.60
  4. Step 4: Simplify right side
    268,482.20x = 36,639,094,448.38
  5. Step 5: Solve for x
    x = 36,639,094,448.38/268,482.20
  6. Step 6: Final answer
    x = 136,467.50

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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.