Home / 278,317.68-384,068.04-150,990.56

Finding the Fourth Proportional to 278,317.68, 384,068.04 and 150,990.56

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Solution

The fourth proportional to 278,317.68, 384,068.04 and 150,990.56 is: 208,361.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,317.68 : 384,068.04 = 150,990.56 : x
  2. Step 2: Convert to fraction form
    278,317.68/384,068.04 = 150,990.56/x
  3. Step 3: Cross multiply
    278,317.68x = 384,068.04 × 150,990.56
  4. Step 4: Simplify right side
    278,317.68x = 57,990,648,437.70
  5. Step 5: Solve for x
    x = 57,990,648,437.70/278,317.68
  6. Step 6: Final answer
    x = 208,361.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.