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Finding the Fourth Proportional to 243,130.56, 335,520.58 and 135,700.57

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Solution

The fourth proportional to 243,130.56, 335,520.58 and 135,700.57 is: 187,267.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,130.56 : 335,520.58 = 135,700.57 : x
  2. Step 2: Convert to fraction form
    243,130.56/335,520.58 = 135,700.57/x
  3. Step 3: Cross multiply
    243,130.56x = 335,520.58 × 135,700.57
  4. Step 4: Simplify right side
    243,130.56x = 45,530,332,400.02
  5. Step 5: Solve for x
    x = 45,530,332,400.02/243,130.56
  6. Step 6: Final answer
    x = 187,267.01

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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.