Home / 328,132.90-492,210.33-91,455.76

Finding the Fourth Proportional to 328,132.90, 492,210.33 and 91,455.76

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Solution

The fourth proportional to 328,132.90, 492,210.33 and 91,455.76 is: 137,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,132.90 : 492,210.33 = 91,455.76 : x
  2. Step 2: Convert to fraction form
    328,132.90/492,210.33 = 91,455.76/x
  3. Step 3: Cross multiply
    328,132.90x = 492,210.33 × 91,455.76
  4. Step 4: Simplify right side
    328,132.90x = 45,015,469,810.00
  5. Step 5: Solve for x
    x = 45,015,469,810.00/328,132.90
  6. Step 6: Final answer
    x = 137,186.70

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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.