Home / 278,700.20-384,604.16-151,376.70

Finding the Fourth Proportional to 278,700.20, 384,604.16 and 151,376.70

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Solution

The fourth proportional to 278,700.20, 384,604.16 and 151,376.70 is: 208,898.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,700.20 : 384,604.16 = 151,376.70 : x
  2. Step 2: Convert to fraction form
    278,700.20/384,604.16 = 151,376.70/x
  3. Step 3: Cross multiply
    278,700.20x = 384,604.16 × 151,376.70
  4. Step 4: Simplify right side
    278,700.20x = 58,220,107,790.19
  5. Step 5: Solve for x
    x = 58,220,107,790.19/278,700.20
  6. Step 6: Final answer
    x = 208,898.70

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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.