Home / 325,020.30-487,530.45-218,732.10

Finding the Fourth Proportional to 325,020.30, 487,530.45 and 218,732.10

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Solution

The fourth proportional to 325,020.30, 487,530.45 and 218,732.10 is: 328,098.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,020.30 : 487,530.45 = 218,732.10 : x
  2. Step 2: Convert to fraction form
    325,020.30/487,530.45 = 218,732.10/x
  3. Step 3: Cross multiply
    325,020.30x = 487,530.45 × 218,732.10
  4. Step 4: Simplify right side
    325,020.30x = 106,638,559,142.45
  5. Step 5: Solve for x
    x = 106,638,559,142.45/325,020.30
  6. Step 6: Final answer
    x = 328,098.15

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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.