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Finding the Fourth Proportional to 323,517.51, 485,276.27 and 98,878.59

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Solution

The fourth proportional to 323,517.51, 485,276.27 and 98,878.59 is: 148,317.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,517.51 : 485,276.27 = 98,878.59 : x
  2. Step 2: Convert to fraction form
    323,517.51/485,276.27 = 98,878.59/x
  3. Step 3: Cross multiply
    323,517.51x = 485,276.27 × 98,878.59
  4. Step 4: Simplify right side
    323,517.51x = 47,983,432,843.67
  5. Step 5: Solve for x
    x = 47,983,432,843.67/323,517.51
  6. Step 6: Final answer
    x = 148,317.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.