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Finding the Fourth Proportional to 243,430.86, 335,941.44 and 136,012.71

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Solution

The fourth proportional to 243,430.86, 335,941.44 and 136,012.71 is: 187,701.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,430.86 : 335,941.44 = 136,012.71 : x
  2. Step 2: Convert to fraction form
    243,430.86/335,941.44 = 136,012.71/x
  3. Step 3: Cross multiply
    243,430.86x = 335,941.44 × 136,012.71
  4. Step 4: Simplify right side
    243,430.86x = 45,692,305,655.70
  5. Step 5: Solve for x
    x = 45,692,305,655.70/243,430.86
  6. Step 6: Final answer
    x = 187,701.37

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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.