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Finding the Fourth Proportional to 245,881.31, 368,749.06 and 105,607.13

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Solution

The fourth proportional to 245,881.31, 368,749.06 and 105,607.13 is: 158,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,881.31 : 368,749.06 = 105,607.13 : x
  2. Step 2: Convert to fraction form
    245,881.31/368,749.06 = 105,607.13/x
  3. Step 3: Cross multiply
    245,881.31x = 368,749.06 × 105,607.13
  4. Step 4: Simplify right side
    245,881.31x = 38,942,527,809.03
  5. Step 5: Solve for x
    x = 38,942,527,809.03/245,881.31
  6. Step 6: Final answer
    x = 158,379.38

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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.