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Finding the Fourth Proportional to 272,146.93, 375,565.50 and 149,645.77

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Solution

The fourth proportional to 272,146.93, 375,565.50 and 149,645.77 is: 206,512.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,146.93 : 375,565.50 = 149,645.77 : x
  2. Step 2: Convert to fraction form
    272,146.93/375,565.50 = 149,645.77/x
  3. Step 3: Cross multiply
    272,146.93x = 375,565.50 × 149,645.77
  4. Step 4: Simplify right side
    272,146.93x = 56,201,787,494.02
  5. Step 5: Solve for x
    x = 56,201,787,494.02/272,146.93
  6. Step 6: Final answer
    x = 206,512.67

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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.