Home / 434,680.20-652,214.70-209,953.80

Finding the Fourth Proportional to 434,680.20, 652,214.70 and 209,953.80

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Solution

The fourth proportional to 434,680.20, 652,214.70 and 209,953.80 is: 315,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,680.20 : 652,214.70 = 209,953.80 : x
  2. Step 2: Convert to fraction form
    434,680.20/652,214.70 = 209,953.80/x
  3. Step 3: Cross multiply
    434,680.20x = 652,214.70 × 209,953.80
  4. Step 4: Simplify right side
    434,680.20x = 136,934,954,680.86
  5. Step 5: Solve for x
    x = 136,934,954,680.86/434,680.20
  6. Step 6: Final answer
    x = 315,024.60

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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.