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Finding the Fourth Proportional to 243,145.61, 335,546.23 and 134,249.59

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Solution

The fourth proportional to 243,145.61, 335,546.23 and 134,249.59 is: 185,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,145.61 : 335,546.23 = 134,249.59 : x
  2. Step 2: Convert to fraction form
    243,145.61/335,546.23 = 134,249.59/x
  3. Step 3: Cross multiply
    243,145.61x = 335,546.23 × 134,249.59
  4. Step 4: Simplify right side
    243,145.61x = 45,046,943,803.55
  5. Step 5: Solve for x
    x = 45,046,943,803.55/243,145.61
  6. Step 6: Final answer
    x = 185,267.35

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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.