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Finding the Fourth Proportional to 279,318.68, 385,392.57 and 164,602.01

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Solution

The fourth proportional to 279,318.68, 385,392.57 and 164,602.01 is: 227,111.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,318.68 : 385,392.57 = 164,602.01 : x
  2. Step 2: Convert to fraction form
    279,318.68/385,392.57 = 164,602.01/x
  3. Step 3: Cross multiply
    279,318.68x = 385,392.57 × 164,602.01
  4. Step 4: Simplify right side
    279,318.68x = 63,436,391,661.07
  5. Step 5: Solve for x
    x = 63,436,391,661.07/279,318.68
  6. Step 6: Final answer
    x = 227,111.17

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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.