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Finding the Fourth Proportional to 243,630.99, 336,211.02 and 136,200.96

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Solution

The fourth proportional to 243,630.99, 336,211.02 and 136,200.96 is: 187,957.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,630.99 : 336,211.02 = 136,200.96 : x
  2. Step 2: Convert to fraction form
    243,630.99/336,211.02 = 136,200.96/x
  3. Step 3: Cross multiply
    243,630.99x = 336,211.02 × 136,200.96
  4. Step 4: Simplify right side
    243,630.99x = 45,792,263,686.58
  5. Step 5: Solve for x
    x = 45,792,263,686.58/243,630.99
  6. Step 6: Final answer
    x = 187,957.47

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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.