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Finding the Fourth Proportional to 273,870.75, 378,424.53 and 210,753.93

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Solution

The fourth proportional to 273,870.75, 378,424.53 and 210,753.93 is: 291,212.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,870.75 : 378,424.53 = 210,753.93 : x
  2. Step 2: Convert to fraction form
    273,870.75/378,424.53 = 210,753.93/x
  3. Step 3: Cross multiply
    273,870.75x = 378,424.53 × 210,753.93
  4. Step 4: Simplify right side
    273,870.75x = 79,754,456,905.90
  5. Step 5: Solve for x
    x = 79,754,456,905.90/273,870.75
  6. Step 6: Final answer
    x = 291,212.03

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1.5x scale

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.