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Finding the Fourth Proportional to 224,638.08, 310,016.88 and 129,174.72

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Solution

The fourth proportional to 224,638.08, 310,016.88 and 129,174.72 is: 178,270.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,638.08 : 310,016.88 = 129,174.72 : x
  2. Step 2: Convert to fraction form
    224,638.08/310,016.88 = 129,174.72/x
  3. Step 3: Cross multiply
    224,638.08x = 310,016.88 × 129,174.72
  4. Step 4: Simplify right side
    224,638.08x = 40,046,343,669.27
  5. Step 5: Solve for x
    x = 40,046,343,669.27/224,638.08
  6. Step 6: Final answer
    x = 178,270.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.