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Finding the Fourth Proportional to 247,187.86, 370,888.66 and 105,064.36

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Solution

The fourth proportional to 247,187.86, 370,888.66 and 105,064.36 is: 157,641.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,187.86 : 370,888.66 = 105,064.36 : x
  2. Step 2: Convert to fraction form
    247,187.86/370,888.66 = 105,064.36/x
  3. Step 3: Cross multiply
    247,187.86x = 370,888.66 × 105,064.36
  4. Step 4: Simplify right side
    247,187.86x = 38,967,179,694.16
  5. Step 5: Solve for x
    x = 38,967,179,694.16/247,187.86
  6. Step 6: Final answer
    x = 157,641.96

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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.