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Finding the Fourth Proportional to 240,393.16, 360,643.04 and 90,634.76

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Solution

The fourth proportional to 240,393.16, 360,643.04 and 90,634.76 is: 135,972.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,393.16 : 360,643.04 = 90,634.76 : x
  2. Step 2: Convert to fraction form
    240,393.16/360,643.04 = 90,634.76/x
  3. Step 3: Cross multiply
    240,393.16x = 360,643.04 × 90,634.76
  4. Step 4: Simplify right side
    240,393.16x = 32,686,795,376.07
  5. Step 5: Solve for x
    x = 32,686,795,376.07/240,393.16
  6. Step 6: Final answer
    x = 135,972.24

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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.