Home / 309,928.20-464,680.07-157,830.86

Finding the Fourth Proportional to 309,928.20, 464,680.07 and 157,830.86

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Solution

The fourth proportional to 309,928.20, 464,680.07 and 157,830.86 is: 236,638.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,928.20 : 464,680.07 = 157,830.86 : x
  2. Step 2: Convert to fraction form
    309,928.20/464,680.07 = 157,830.86/x
  3. Step 3: Cross multiply
    309,928.20x = 464,680.07 × 157,830.86
  4. Step 4: Simplify right side
    309,928.20x = 73,340,851,960.41
  5. Step 5: Solve for x
    x = 73,340,851,960.41/309,928.20
  6. Step 6: Final answer
    x = 236,638.20

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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.