Home / 318,972.51-478,527.41-159,134.40

Finding the Fourth Proportional to 318,972.51, 478,527.41 and 159,134.40

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Solution

The fourth proportional to 318,972.51, 478,527.41 and 159,134.40 is: 238,735.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,972.51 : 478,527.41 = 159,134.40 : x
  2. Step 2: Convert to fraction form
    318,972.51/478,527.41 = 159,134.40/x
  3. Step 3: Cross multiply
    318,972.51x = 478,527.41 × 159,134.40
  4. Step 4: Simplify right side
    318,972.51x = 76,150,172,671.74
  5. Step 5: Solve for x
    x = 76,150,172,671.74/318,972.51
  6. Step 6: Final answer
    x = 238,735.85

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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.