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Finding the Fourth Proportional to 210,550.14, 315,705.15 and 125,197.02

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Solution

The fourth proportional to 210,550.14, 315,705.15 and 125,197.02 is: 187,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,550.14 : 315,705.15 = 125,197.02 : x
  2. Step 2: Convert to fraction form
    210,550.14/315,705.15 = 125,197.02/x
  3. Step 3: Cross multiply
    210,550.14x = 315,705.15 × 125,197.02
  4. Step 4: Simplify right side
    210,550.14x = 39,525,343,352.67
  5. Step 5: Solve for x
    x = 39,525,343,352.67/210,550.14
  6. Step 6: Final answer
    x = 187,724.14

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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.