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Finding the Fourth Proportional to 260,490.84, 390,767.90 and 73,502.36

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Solution

The fourth proportional to 260,490.84, 390,767.90 and 73,502.36 is: 110,262.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,490.84 : 390,767.90 = 73,502.36 : x
  2. Step 2: Convert to fraction form
    260,490.84/390,767.90 = 73,502.36/x
  3. Step 3: Cross multiply
    260,490.84x = 390,767.90 × 73,502.36
  4. Step 4: Simplify right side
    260,490.84x = 28,722,362,862.24
  5. Step 5: Solve for x
    x = 28,722,362,862.24/260,490.84
  6. Step 6: Final answer
    x = 110,262.47

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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.