Home / 331,448.40-497,172.06-82,130.40

Finding the Fourth Proportional to 331,448.40, 497,172.06 and 82,130.40

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Solution

The fourth proportional to 331,448.40, 497,172.06 and 82,130.40 is: 123,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,448.40 : 497,172.06 = 82,130.40 : x
  2. Step 2: Convert to fraction form
    331,448.40/497,172.06 = 82,130.40/x
  3. Step 3: Cross multiply
    331,448.40x = 497,172.06 × 82,130.40
  4. Step 4: Simplify right side
    331,448.40x = 40,832,940,156.62
  5. Step 5: Solve for x
    x = 40,832,940,156.62/331,448.40
  6. Step 6: Final answer
    x = 123,195.47

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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.