Home / 318,207.35-477,518.79-118,687.34

Finding the Fourth Proportional to 318,207.35, 477,518.79 and 118,687.34

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Solution

The fourth proportional to 318,207.35, 477,518.79 and 118,687.34 is: 178,108.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,207.35 : 477,518.79 = 118,687.34 : x
  2. Step 2: Convert to fraction form
    318,207.35/477,518.79 = 118,687.34/x
  3. Step 3: Cross multiply
    318,207.35x = 477,518.79 × 118,687.34
  4. Step 4: Simplify right side
    318,207.35x = 56,675,436,178.92
  5. Step 5: Solve for x
    x = 56,675,436,178.92/318,207.35
  6. Step 6: Final answer
    x = 178,108.51

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1.5x scale

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.