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Finding the Fourth Proportional to 243,264.54, 335,645.19 and 147,765.54

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Solution

The fourth proportional to 243,264.54, 335,645.19 and 147,765.54 is: 203,880.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,264.54 : 335,645.19 = 147,765.54 : x
  2. Step 2: Convert to fraction form
    243,264.54/335,645.19 = 147,765.54/x
  3. Step 3: Cross multiply
    243,264.54x = 335,645.19 × 147,765.54
  4. Step 4: Simplify right side
    243,264.54x = 49,596,792,748.75
  5. Step 5: Solve for x
    x = 49,596,792,748.75/243,264.54
  6. Step 6: Final answer
    x = 203,880.08

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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.