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Finding the Fourth Proportional to 243,747, 336,409.74 and 143,125.56

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Solution

The fourth proportional to 243,747, 336,409.74 and 143,125.56 is: 197,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,747 : 336,409.74 = 143,125.56 : x
  2. Step 2: Convert to fraction form
    243,747/336,409.74 = 143,125.56/x
  3. Step 3: Cross multiply
    243,747x = 336,409.74 × 143,125.56
  4. Step 4: Simplify right side
    243,747x = 48,148,832,426.95
  5. Step 5: Solve for x
    x = 48,148,832,426.95/243,747
  6. Step 6: Final answer
    x = 197,536.10

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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.