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Finding the Fourth Proportional to 395,946.80, 593,920.20 and 115,492.40

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Solution

The fourth proportional to 395,946.80, 593,920.20 and 115,492.40 is: 173,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,946.80 : 593,920.20 = 115,492.40 : x
  2. Step 2: Convert to fraction form
    395,946.80/593,920.20 = 115,492.40/x
  3. Step 3: Cross multiply
    395,946.80x = 593,920.20 × 115,492.40
  4. Step 4: Simplify right side
    395,946.80x = 68,593,269,306.48
  5. Step 5: Solve for x
    x = 68,593,269,306.48/395,946.80
  6. Step 6: Final answer
    x = 173,238.60

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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.