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Finding the Fourth Proportional to 242,484.54, 334,639.05 and 135,054.60

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Solution

The fourth proportional to 242,484.54, 334,639.05 and 135,054.60 is: 186,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,484.54 : 334,639.05 = 135,054.60 : x
  2. Step 2: Convert to fraction form
    242,484.54/334,639.05 = 135,054.60/x
  3. Step 3: Cross multiply
    242,484.54x = 334,639.05 × 135,054.60
  4. Step 4: Simplify right side
    242,484.54x = 45,194,543,042.13
  5. Step 5: Solve for x
    x = 45,194,543,042.13/242,484.54
  6. Step 6: Final answer
    x = 186,381.13

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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.