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Finding the Fourth Proportional to 318,539.02, 477,248.02 and 299,575.30

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Solution

The fourth proportional to 318,539.02, 477,248.02 and 299,575.30 is: 448,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,539.02 : 477,248.02 = 299,575.30 : x
  2. Step 2: Convert to fraction form
    318,539.02/477,248.02 = 299,575.30/x
  3. Step 3: Cross multiply
    318,539.02x = 477,248.02 × 299,575.30
  4. Step 4: Simplify right side
    318,539.02x = 142,971,714,881.79
  5. Step 5: Solve for x
    x = 142,971,714,881.79/318,539.02
  6. Step 6: Final answer
    x = 448,835.80

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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.