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Finding the Fourth Proportional to 279,463.56, 385,637.56 and 158,604.84

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Solution

The fourth proportional to 279,463.56, 385,637.56 and 158,604.84 is: 218,862.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,463.56 : 385,637.56 = 158,604.84 : x
  2. Step 2: Convert to fraction form
    279,463.56/385,637.56 = 158,604.84/x
  3. Step 3: Cross multiply
    279,463.56x = 385,637.56 × 158,604.84
  4. Step 4: Simplify right side
    279,463.56x = 61,163,983,501.79
  5. Step 5: Solve for x
    x = 61,163,983,501.79/279,463.56
  6. Step 6: Final answer
    x = 218,862.11

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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.