Home / 318,968.31-478,453.01-299,482.14

Finding the Fourth Proportional to 318,968.31, 478,453.01 and 299,482.14

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Solution

The fourth proportional to 318,968.31, 478,453.01 and 299,482.14 is: 449,223.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,968.31 : 478,453.01 = 299,482.14 : x
  2. Step 2: Convert to fraction form
    318,968.31/478,453.01 = 299,482.14/x
  3. Step 3: Cross multiply
    318,968.31x = 478,453.01 × 299,482.14
  4. Step 4: Simplify right side
    318,968.31x = 143,288,129,826.83
  5. Step 5: Solve for x
    x = 143,288,129,826.83/318,968.31
  6. Step 6: Final answer
    x = 449,223.72

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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.