Home / 380,395.42-524,939.26-210,625.90

Finding the Fourth Proportional to 380,395.42, 524,939.26 and 210,625.90

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Solution

The fourth proportional to 380,395.42, 524,939.26 and 210,625.90 is: 290,660.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,395.42 : 524,939.26 = 210,625.90 : x
  2. Step 2: Convert to fraction form
    380,395.42/524,939.26 = 210,625.90/x
  3. Step 3: Cross multiply
    380,395.42x = 524,939.26 × 210,625.90
  4. Step 4: Simplify right side
    380,395.42x = 110,565,804,082.83
  5. Step 5: Solve for x
    x = 110,565,804,082.83/380,395.42
  6. Step 6: Final answer
    x = 290,660.19

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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.