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Finding the Fourth Proportional to 240,341.76, 360,563.40 and 90,578.88

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Solution

The fourth proportional to 240,341.76, 360,563.40 and 90,578.88 is: 135,887.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,341.76 : 360,563.40 = 90,578.88 : x
  2. Step 2: Convert to fraction form
    240,341.76/360,563.40 = 90,578.88/x
  3. Step 3: Cross multiply
    240,341.76x = 360,563.40 × 90,578.88
  4. Step 4: Simplify right side
    240,341.76x = 32,659,428,940.99
  5. Step 5: Solve for x
    x = 32,659,428,940.99/240,341.76
  6. Step 6: Final answer
    x = 135,887.45

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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.