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Finding the Fourth Proportional to 371,273.16, 556,909.74 and 90,787.08

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Solution

The fourth proportional to 371,273.16, 556,909.74 and 90,787.08 is: 136,180.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,273.16 : 556,909.74 = 90,787.08 : x
  2. Step 2: Convert to fraction form
    371,273.16/556,909.74 = 90,787.08/x
  3. Step 3: Cross multiply
    371,273.16x = 556,909.74 × 90,787.08
  4. Step 4: Simplify right side
    371,273.16x = 50,560,209,118.16
  5. Step 5: Solve for x
    x = 50,560,209,118.16/371,273.16
  6. Step 6: Final answer
    x = 136,180.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.