Home / 328,321.40-492,482.10-117,966.20

Finding the Fourth Proportional to 328,321.40, 492,482.10 and 117,966.20

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Solution

The fourth proportional to 328,321.40, 492,482.10 and 117,966.20 is: 176,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,321.40 : 492,482.10 = 117,966.20 : x
  2. Step 2: Convert to fraction form
    328,321.40/492,482.10 = 117,966.20/x
  3. Step 3: Cross multiply
    328,321.40x = 492,482.10 × 117,966.20
  4. Step 4: Simplify right side
    328,321.40x = 58,096,241,905.02
  5. Step 5: Solve for x
    x = 58,096,241,905.02/328,321.40
  6. Step 6: Final answer
    x = 176,949.30

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Similar ratio
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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.