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Finding the Fourth Proportional to 243,684.80, 336,283.90 and 136,254.84

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Solution

The fourth proportional to 243,684.80, 336,283.90 and 136,254.84 is: 188,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,684.80 : 336,283.90 = 136,254.84 : x
  2. Step 2: Convert to fraction form
    243,684.80/336,283.90 = 136,254.84/x
  3. Step 3: Cross multiply
    243,684.80x = 336,283.90 × 136,254.84
  4. Step 4: Simplify right side
    243,684.80x = 45,820,308,989.08
  5. Step 5: Solve for x
    x = 45,820,308,989.08/243,684.80
  6. Step 6: Final answer
    x = 188,031.05

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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.