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Finding the Fourth Proportional to 279,599.84, 385,858.70 and 158,752.38

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Solution

The fourth proportional to 279,599.84, 385,858.70 and 158,752.38 is: 219,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,599.84 : 385,858.70 = 158,752.38 : x
  2. Step 2: Convert to fraction form
    279,599.84/385,858.70 = 158,752.38/x
  3. Step 3: Cross multiply
    279,599.84x = 385,858.70 × 158,752.38
  4. Step 4: Simplify right side
    279,599.84x = 61,255,986,968.71
  5. Step 5: Solve for x
    x = 61,255,986,968.71/279,599.84
  6. Step 6: Final answer
    x = 219,084.49

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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.