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Finding the Fourth Proportional to 371,777.87, 513,051.67 and 210,632.57

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Solution

The fourth proportional to 371,777.87, 513,051.67 and 210,632.57 is: 290,671.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,777.87 : 513,051.67 = 210,632.57 : x
  2. Step 2: Convert to fraction form
    371,777.87/513,051.67 = 210,632.57/x
  3. Step 3: Cross multiply
    371,777.87x = 513,051.67 × 210,632.57
  4. Step 4: Simplify right side
    371,777.87x = 108,065,391,794.89
  5. Step 5: Solve for x
    x = 108,065,391,794.89/371,777.87
  6. Step 6: Final answer
    x = 290,671.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.