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Finding the Fourth Proportional to 242,960.16, 335,140.66 and 189,159.96

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Solution

The fourth proportional to 242,960.16, 335,140.66 and 189,159.96 is: 260,928.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,960.16 : 335,140.66 = 189,159.96 : x
  2. Step 2: Convert to fraction form
    242,960.16/335,140.66 = 189,159.96/x
  3. Step 3: Cross multiply
    242,960.16x = 335,140.66 × 189,159.96
  4. Step 4: Simplify right side
    242,960.16x = 63,395,193,839.97
  5. Step 5: Solve for x
    x = 63,395,193,839.97/242,960.16
  6. Step 6: Final answer
    x = 260,928.35

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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.