Home / 209,520.64-314,280.96-172,506.88

Finding the Fourth Proportional to 209,520.64, 314,280.96 and 172,506.88

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Solution

The fourth proportional to 209,520.64, 314,280.96 and 172,506.88 is: 258,760.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,520.64 : 314,280.96 = 172,506.88 : x
  2. Step 2: Convert to fraction form
    209,520.64/314,280.96 = 172,506.88/x
  3. Step 3: Cross multiply
    209,520.64x = 314,280.96 × 172,506.88
  4. Step 4: Simplify right side
    209,520.64x = 54,215,627,853.00
  5. Step 5: Solve for x
    x = 54,215,627,853.00/209,520.64
  6. Step 6: Final answer
    x = 258,760.32

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1.5x scale

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.