Home / 278,591.65-384,445.70-151,264.33

Finding the Fourth Proportional to 278,591.65, 384,445.70 and 151,264.33

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Solution

The fourth proportional to 278,591.65, 384,445.70 and 151,264.33 is: 208,738.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,591.65 : 384,445.70 = 151,264.33 : x
  2. Step 2: Convert to fraction form
    278,591.65/384,445.70 = 151,264.33/x
  3. Step 3: Cross multiply
    278,591.65x = 384,445.70 × 151,264.33
  4. Step 4: Simplify right side
    278,591.65x = 58,152,920,475.56
  5. Step 5: Solve for x
    x = 58,152,920,475.56/278,591.65
  6. Step 6: Final answer
    x = 208,738.92

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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.