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Finding the Fourth Proportional to 318,292.09, 477,648.45 and 149,860.58

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Solution

The fourth proportional to 318,292.09, 477,648.45 and 149,860.58 is: 224,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,292.09 : 477,648.45 = 149,860.58 : x
  2. Step 2: Convert to fraction form
    318,292.09/477,648.45 = 149,860.58/x
  3. Step 3: Cross multiply
    318,292.09x = 477,648.45 × 149,860.58
  4. Step 4: Simplify right side
    318,292.09x = 71,580,671,364.86
  5. Step 5: Solve for x
    x = 71,580,671,364.86/318,292.09
  6. Step 6: Final answer
    x = 224,889.89

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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.