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Finding the Fourth Proportional to 243,494.16, 336,034.92 and 136,066.80

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Solution

The fourth proportional to 243,494.16, 336,034.92 and 136,066.80 is: 187,779.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,494.16 : 336,034.92 = 136,066.80 : x
  2. Step 2: Convert to fraction form
    243,494.16/336,034.92 = 136,066.80/x
  3. Step 3: Cross multiply
    243,494.16x = 336,034.92 × 136,066.80
  4. Step 4: Simplify right side
    243,494.16x = 45,723,196,252.66
  5. Step 5: Solve for x
    x = 45,723,196,252.66/243,494.16
  6. Step 6: Final answer
    x = 187,779.44

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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.