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Finding the Fourth Proportional to 243,433.79, 335,932.44 and 136,004.63

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Solution

The fourth proportional to 243,433.79, 335,932.44 and 136,004.63 is: 187,682.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,433.79 : 335,932.44 = 136,004.63 : x
  2. Step 2: Convert to fraction form
    243,433.79/335,932.44 = 136,004.63/x
  3. Step 3: Cross multiply
    243,433.79x = 335,932.44 × 136,004.63
  4. Step 4: Simplify right side
    243,433.79x = 45,688,367,207.20
  5. Step 5: Solve for x
    x = 45,688,367,207.20/243,433.79
  6. Step 6: Final answer
    x = 187,682.93

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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.