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Finding the Fourth Proportional to 279,336.33, 385,492.88 and 158,482.71

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Solution

The fourth proportional to 279,336.33, 385,492.88 and 158,482.71 is: 218,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,336.33 : 385,492.88 = 158,482.71 : x
  2. Step 2: Convert to fraction form
    279,336.33/385,492.88 = 158,482.71/x
  3. Step 3: Cross multiply
    279,336.33x = 385,492.88 × 158,482.71
  4. Step 4: Simplify right side
    279,336.33x = 61,093,955,515.69
  5. Step 5: Solve for x
    x = 61,093,955,515.69/279,336.33
  6. Step 6: Final answer
    x = 218,711.10

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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.