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Finding the Fourth Proportional to 242,722.76, 334,968.74 and 135,293.56

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Solution

The fourth proportional to 242,722.76, 334,968.74 and 135,293.56 is: 186,711.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,722.76 : 334,968.74 = 135,293.56 : x
  2. Step 2: Convert to fraction form
    242,722.76/334,968.74 = 135,293.56/x
  3. Step 3: Cross multiply
    242,722.76x = 334,968.74 × 135,293.56
  4. Step 4: Simplify right side
    242,722.76x = 45,319,113,323.31
  5. Step 5: Solve for x
    x = 45,319,113,323.31/242,722.76
  6. Step 6: Final answer
    x = 186,711.43

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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.