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Finding the Fourth Proportional to 242,478.80, 334,631.08 and 135,048.82

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Solution

The fourth proportional to 242,478.80, 334,631.08 and 135,048.82 is: 186,373.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,478.80 : 334,631.08 = 135,048.82 : x
  2. Step 2: Convert to fraction form
    242,478.80/334,631.08 = 135,048.82/x
  3. Step 3: Cross multiply
    242,478.80x = 334,631.08 × 135,048.82
  4. Step 4: Simplify right side
    242,478.80x = 45,191,532,489.33
  5. Step 5: Solve for x
    x = 45,191,532,489.33/242,478.80
  6. Step 6: Final answer
    x = 186,373.13

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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.