Home / 278,731.42-384,630.34-151,404.28

Finding the Fourth Proportional to 278,731.42, 384,630.34 and 151,404.28

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Solution

The fourth proportional to 278,731.42, 384,630.34 and 151,404.28 is: 208,927.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,731.42 : 384,630.34 = 151,404.28 : x
  2. Step 2: Convert to fraction form
    278,731.42/384,630.34 = 151,404.28/x
  3. Step 3: Cross multiply
    278,731.42x = 384,630.34 × 151,404.28
  4. Step 4: Simplify right side
    278,731.42x = 58,234,679,693.86
  5. Step 5: Solve for x
    x = 58,234,679,693.86/278,731.42
  6. Step 6: Final answer
    x = 208,927.58

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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.