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Finding the Fourth Proportional to 145,672.38, 218,508.63 and 40,492.26

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Solution

The fourth proportional to 145,672.38, 218,508.63 and 40,492.26 is: 60,738.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,672.38 : 218,508.63 = 40,492.26 : x
  2. Step 2: Convert to fraction form
    145,672.38/218,508.63 = 40,492.26/x
  3. Step 3: Cross multiply
    145,672.38x = 218,508.63 × 40,492.26
  4. Step 4: Simplify right side
    145,672.38x = 8,847,908,258.20
  5. Step 5: Solve for x
    x = 8,847,908,258.20/145,672.38
  6. Step 6: Final answer
    x = 60,738.41

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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.