Home / 217,631.80-326,316.48-99,402.58

Finding the Fourth Proportional to 217,631.80, 326,316.48 and 99,402.58

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Solution

The fourth proportional to 217,631.80, 326,316.48 and 99,402.58 is: 149,043.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,631.80 : 326,316.48 = 99,402.58 : x
  2. Step 2: Convert to fraction form
    217,631.80/326,316.48 = 99,402.58/x
  3. Step 3: Cross multiply
    217,631.80x = 326,316.48 × 99,402.58
  4. Step 4: Simplify right side
    217,631.80x = 32,436,700,008.52
  5. Step 5: Solve for x
    x = 32,436,700,008.52/217,631.80
  6. Step 6: Final answer
    x = 149,043.94

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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.