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Finding the Fourth Proportional to 268,842.48, 370,999.56 and 147,981.12

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Solution

The fourth proportional to 268,842.48, 370,999.56 and 147,981.12 is: 204,212.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,842.48 : 370,999.56 = 147,981.12 : x
  2. Step 2: Convert to fraction form
    268,842.48/370,999.56 = 147,981.12/x
  3. Step 3: Cross multiply
    268,842.48x = 370,999.56 × 147,981.12
  4. Step 4: Simplify right side
    268,842.48x = 54,900,930,408.31
  5. Step 5: Solve for x
    x = 54,900,930,408.31/268,842.48
  6. Step 6: Final answer
    x = 204,212.26

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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.