Home / 209,867.40-314,801.10-165,630.60

Finding the Fourth Proportional to 209,867.40, 314,801.10 and 165,630.60

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Solution

The fourth proportional to 209,867.40, 314,801.10 and 165,630.60 is: 248,445.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,867.40 : 314,801.10 = 165,630.60 : x
  2. Step 2: Convert to fraction form
    209,867.40/314,801.10 = 165,630.60/x
  3. Step 3: Cross multiply
    209,867.40x = 314,801.10 × 165,630.60
  4. Step 4: Simplify right side
    209,867.40x = 52,140,695,073.66
  5. Step 5: Solve for x
    x = 52,140,695,073.66/209,867.40
  6. Step 6: Final answer
    x = 248,445.90

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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.