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Finding the Fourth Proportional to 243,486.63, 336,044.93 and 140,118.70

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Solution

The fourth proportional to 243,486.63, 336,044.93 and 140,118.70 is: 193,383.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,486.63 : 336,044.93 = 140,118.70 : x
  2. Step 2: Convert to fraction form
    243,486.63/336,044.93 = 140,118.70/x
  3. Step 3: Cross multiply
    243,486.63x = 336,044.93 × 140,118.70
  4. Step 4: Simplify right side
    243,486.63x = 47,086,177,192.49
  5. Step 5: Solve for x
    x = 47,086,177,192.49/243,486.63
  6. Step 6: Final answer
    x = 193,383.01

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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.