Home / 318,944.31-478,417.14-299,458.14

Finding the Fourth Proportional to 318,944.31, 478,417.14 and 299,458.14

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Solution

The fourth proportional to 318,944.31, 478,417.14 and 299,458.14 is: 449,187.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,944.31 : 478,417.14 = 299,458.14 : x
  2. Step 2: Convert to fraction form
    318,944.31/478,417.14 = 299,458.14/x
  3. Step 3: Cross multiply
    318,944.31x = 478,417.14 × 299,458.14
  4. Step 4: Simplify right side
    318,944.31x = 143,265,906,888.52
  5. Step 5: Solve for x
    x = 143,265,906,888.52/318,944.31
  6. Step 6: Final answer
    x = 449,187.84

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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.