Home / 278,119.04-416,931.14-100,586.58

Finding the Fourth Proportional to 278,119.04, 416,931.14 and 100,586.58

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Solution

The fourth proportional to 278,119.04, 416,931.14 and 100,586.58 is: 150,790.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,119.04 : 416,931.14 = 100,586.58 : x
  2. Step 2: Convert to fraction form
    278,119.04/416,931.14 = 100,586.58/x
  3. Step 3: Cross multiply
    278,119.04x = 416,931.14 × 100,586.58
  4. Step 4: Simplify right side
    278,119.04x = 41,937,676,965.17
  5. Step 5: Solve for x
    x = 41,937,676,965.17/278,119.04
  6. Step 6: Final answer
    x = 150,790.39

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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.