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Finding the Fourth Proportional to 240,137.96, 360,206.94 and 90,411.84

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Solution

The fourth proportional to 240,137.96, 360,206.94 and 90,411.84 is: 135,617.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,137.96 : 360,206.94 = 90,411.84 : x
  2. Step 2: Convert to fraction form
    240,137.96/360,206.94 = 90,411.84/x
  3. Step 3: Cross multiply
    240,137.96x = 360,206.94 × 90,411.84
  4. Step 4: Simplify right side
    240,137.96x = 32,566,972,226.17
  5. Step 5: Solve for x
    x = 32,566,972,226.17/240,137.96
  6. Step 6: Final answer
    x = 135,617.76

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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.