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Finding the Fourth Proportional to 370,673.52, 511,523.90 and 209,522.90

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Solution

The fourth proportional to 370,673.52, 511,523.90 and 209,522.90 is: 289,138.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,673.52 : 511,523.90 = 209,522.90 : x
  2. Step 2: Convert to fraction form
    370,673.52/511,523.90 = 209,522.90/x
  3. Step 3: Cross multiply
    370,673.52x = 511,523.90 × 209,522.90
  4. Step 4: Simplify right side
    370,673.52x = 107,175,970,947.31
  5. Step 5: Solve for x
    x = 107,175,970,947.31/370,673.52
  6. Step 6: Final answer
    x = 289,138.46

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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.