Home / 217,639.40-326,451.48-89,551.06

Finding the Fourth Proportional to 217,639.40, 326,451.48 and 89,551.06

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Solution

The fourth proportional to 217,639.40, 326,451.48 and 89,551.06 is: 134,323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,639.40 : 326,451.48 = 89,551.06 : x
  2. Step 2: Convert to fraction form
    217,639.40/326,451.48 = 89,551.06/x
  3. Step 3: Cross multiply
    217,639.40x = 326,451.48 × 89,551.06
  4. Step 4: Simplify right side
    217,639.40x = 29,234,076,072.57
  5. Step 5: Solve for x
    x = 29,234,076,072.57/217,639.40
  6. Step 6: Final answer
    x = 134,323.45

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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.