Home / 402,933.20-604,865.40-216,309.20

Finding the Fourth Proportional to 402,933.20, 604,865.40 and 216,309.20

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Solution

The fourth proportional to 402,933.20, 604,865.40 and 216,309.20 is: 324,713.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,933.20 : 604,865.40 = 216,309.20 : x
  2. Step 2: Convert to fraction form
    402,933.20/604,865.40 = 216,309.20/x
  3. Step 3: Cross multiply
    402,933.20x = 604,865.40 × 216,309.20
  4. Step 4: Simplify right side
    402,933.20x = 130,837,950,781.68
  5. Step 5: Solve for x
    x = 130,837,950,781.68/402,933.20
  6. Step 6: Final answer
    x = 324,713.75

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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.