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Finding the Fourth Proportional to 318,029.60, 477,044.40 and 304,032.80

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Solution

The fourth proportional to 318,029.60, 477,044.40 and 304,032.80 is: 456,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,029.60 : 477,044.40 = 304,032.80 : x
  2. Step 2: Convert to fraction form
    318,029.60/477,044.40 = 304,032.80/x
  3. Step 3: Cross multiply
    318,029.60x = 477,044.40 × 304,032.80
  4. Step 4: Simplify right side
    318,029.60x = 145,037,144,656.32
  5. Step 5: Solve for x
    x = 145,037,144,656.32/318,029.60
  6. Step 6: Final answer
    x = 456,049.20

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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.