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Finding the Fourth Proportional to 323,538.67, 485,309.20 and 98,898.23

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Solution

The fourth proportional to 323,538.67, 485,309.20 and 98,898.23 is: 148,347.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,538.67 : 485,309.20 = 98,898.23 : x
  2. Step 2: Convert to fraction form
    323,538.67/485,309.20 = 98,898.23/x
  3. Step 3: Cross multiply
    323,538.67x = 485,309.20 × 98,898.23
  4. Step 4: Simplify right side
    323,538.67x = 47,996,221,848.74
  5. Step 5: Solve for x
    x = 47,996,221,848.74/323,538.67
  6. Step 6: Final answer
    x = 148,347.71

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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.