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Finding the Fourth Proportional to 242,143.81, 334,153.88 and 134,713.51

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Solution

The fourth proportional to 242,143.81, 334,153.88 and 134,713.51 is: 185,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,143.81 : 334,153.88 = 134,713.51 : x
  2. Step 2: Convert to fraction form
    242,143.81/334,153.88 = 134,713.51/x
  3. Step 3: Cross multiply
    242,143.81x = 334,153.88 × 134,713.51
  4. Step 4: Simplify right side
    242,143.81x = 45,015,042,054.92
  5. Step 5: Solve for x
    x = 45,015,042,054.92/242,143.81
  6. Step 6: Final answer
    x = 185,902.10

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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.