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Finding the Fourth Proportional to 240,309.81, 360,252.58 and 90,655.20

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Solution

The fourth proportional to 240,309.81, 360,252.58 and 90,655.20 is: 135,902.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,309.81 : 360,252.58 = 90,655.20 : x
  2. Step 2: Convert to fraction form
    240,309.81/360,252.58 = 90,655.20/x
  3. Step 3: Cross multiply
    240,309.81x = 360,252.58 × 90,655.20
  4. Step 4: Simplify right side
    240,309.81x = 32,658,767,435.88
  5. Step 5: Solve for x
    x = 32,658,767,435.88/240,309.81
  6. Step 6: Final answer
    x = 135,902.76

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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.