Home / 812,176.40-1,218,028.08-243,534.80

Finding the Fourth Proportional to 812,176.40, 1,218,028.08 and 243,534.80

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Solution

The fourth proportional to 812,176.40, 1,218,028.08 and 243,534.80 is: 365,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,176.40 : 1,218,028.08 = 243,534.80 : x
  2. Step 2: Convert to fraction form
    812,176.40/1,218,028.08 = 243,534.80/x
  3. Step 3: Cross multiply
    812,176.40x = 1,218,028.08 × 243,534.80
  4. Step 4: Simplify right side
    812,176.40x = 296,632,224,857.18
  5. Step 5: Solve for x
    x = 296,632,224,857.18/812,176.40
  6. Step 6: Final answer
    x = 365,231.28

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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.