Home / 209,962.60-314,946.30-52,191.40

Finding the Fourth Proportional to 209,962.60, 314,946.30 and 52,191.40

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Solution

The fourth proportional to 209,962.60, 314,946.30 and 52,191.40 is: 78,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,962.60 : 314,946.30 = 52,191.40 : x
  2. Step 2: Convert to fraction form
    209,962.60/314,946.30 = 52,191.40/x
  3. Step 3: Cross multiply
    209,962.60x = 314,946.30 × 52,191.40
  4. Step 4: Simplify right side
    209,962.60x = 16,437,488,321.82
  5. Step 5: Solve for x
    x = 16,437,488,321.82/209,962.60
  6. Step 6: Final answer
    x = 78,287.70

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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.