Home / 309,742.74-464,515.65-210,540.42

Finding the Fourth Proportional to 309,742.74, 464,515.65 and 210,540.42

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Solution

The fourth proportional to 309,742.74, 464,515.65 and 210,540.42 is: 315,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,742.74 : 464,515.65 = 210,540.42 : x
  2. Step 2: Convert to fraction form
    309,742.74/464,515.65 = 210,540.42/x
  3. Step 3: Cross multiply
    309,742.74x = 464,515.65 × 210,540.42
  4. Step 4: Simplify right side
    309,742.74x = 97,799,320,047.57
  5. Step 5: Solve for x
    x = 97,799,320,047.57/309,742.74
  6. Step 6: Final answer
    x = 315,743.70

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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.