Home / 278,725.32-384,640.65-151,401.02

Finding the Fourth Proportional to 278,725.32, 384,640.65 and 151,401.02

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Solution

The fourth proportional to 278,725.32, 384,640.65 and 151,401.02 is: 208,933.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,725.32 : 384,640.65 = 151,401.02 : x
  2. Step 2: Convert to fraction form
    278,725.32/384,640.65 = 151,401.02/x
  3. Step 3: Cross multiply
    278,725.32x = 384,640.65 × 151,401.02
  4. Step 4: Simplify right side
    278,725.32x = 58,234,984,820.26
  5. Step 5: Solve for x
    x = 58,234,984,820.26/278,725.32
  6. Step 6: Final answer
    x = 208,933.24

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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.