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Finding the Fourth Proportional to 318,507.58, 477,600.18 and 141,068.98

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Solution

The fourth proportional to 318,507.58, 477,600.18 and 141,068.98 is: 211,532.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,507.58 : 477,600.18 = 141,068.98 : x
  2. Step 2: Convert to fraction form
    318,507.58/477,600.18 = 141,068.98/x
  3. Step 3: Cross multiply
    318,507.58x = 477,600.18 × 141,068.98
  4. Step 4: Simplify right side
    318,507.58x = 67,374,570,240.42
  5. Step 5: Solve for x
    x = 67,374,570,240.42/318,507.58
  6. Step 6: Final answer
    x = 211,532.08

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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.