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Finding the Fourth Proportional to 240,341.80, 360,512.70 and 209,237.80

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Solution

The fourth proportional to 240,341.80, 360,512.70 and 209,237.80 is: 313,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,341.80 : 360,512.70 = 209,237.80 : x
  2. Step 2: Convert to fraction form
    240,341.80/360,512.70 = 209,237.80/x
  3. Step 3: Cross multiply
    240,341.80x = 360,512.70 × 209,237.80
  4. Step 4: Simplify right side
    240,341.80x = 75,432,884,220.06
  5. Step 5: Solve for x
    x = 75,432,884,220.06/240,341.80
  6. Step 6: Final answer
    x = 313,856.70

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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.