Home / 380,215.10-524,641.92-210,448.82

Finding the Fourth Proportional to 380,215.10, 524,641.92 and 210,448.82

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Solution

The fourth proportional to 380,215.10, 524,641.92 and 210,448.82 is: 290,388.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,215.10 : 524,641.92 = 210,448.82 : x
  2. Step 2: Convert to fraction form
    380,215.10/524,641.92 = 210,448.82/x
  3. Step 3: Cross multiply
    380,215.10x = 524,641.92 × 210,448.82
  4. Step 4: Simplify right side
    380,215.10x = 110,410,272,986.53
  5. Step 5: Solve for x
    x = 110,410,272,986.53/380,215.10
  6. Step 6: Final answer
    x = 290,388.97

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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.