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Finding the Fourth Proportional to 250,362.40, 375,504.32 and 81,881.36

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Solution

The fourth proportional to 250,362.40, 375,504.32 and 81,881.36 is: 122,809.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,362.40 : 375,504.32 = 81,881.36 : x
  2. Step 2: Convert to fraction form
    250,362.40/375,504.32 = 81,881.36/x
  3. Step 3: Cross multiply
    250,362.40x = 375,504.32 × 81,881.36
  4. Step 4: Simplify right side
    250,362.40x = 30,746,804,407.48
  5. Step 5: Solve for x
    x = 30,746,804,407.48/250,362.40
  6. Step 6: Final answer
    x = 122,809.19

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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.