Home / 217,870.56-326,712.96-82,911.60

Finding the Fourth Proportional to 217,870.56, 326,712.96 and 82,911.60

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Solution

The fourth proportional to 217,870.56, 326,712.96 and 82,911.60 is: 124,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,870.56 : 326,712.96 = 82,911.60 : x
  2. Step 2: Convert to fraction form
    217,870.56/326,712.96 = 82,911.60/x
  3. Step 3: Cross multiply
    217,870.56x = 326,712.96 × 82,911.60
  4. Step 4: Simplify right side
    217,870.56x = 27,088,294,254.34
  5. Step 5: Solve for x
    x = 27,088,294,254.34/217,870.56
  6. Step 6: Final answer
    x = 124,332.05

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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.