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Finding the Fourth Proportional to 251,309.76, 346,823.88 and 155,879.88

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Solution

The fourth proportional to 251,309.76, 346,823.88 and 155,879.88 is: 215,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,309.76 : 346,823.88 = 155,879.88 : x
  2. Step 2: Convert to fraction form
    251,309.76/346,823.88 = 155,879.88/x
  3. Step 3: Cross multiply
    251,309.76x = 346,823.88 × 155,879.88
  4. Step 4: Simplify right side
    251,309.76x = 54,062,864,795.53
  5. Step 5: Solve for x
    x = 54,062,864,795.53/251,309.76
  6. Step 6: Final answer
    x = 215,124.41

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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.