Home / 382,773.12-528,222.72-210,687.36

Finding the Fourth Proportional to 382,773.12, 528,222.72 and 210,687.36

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Solution

The fourth proportional to 382,773.12, 528,222.72 and 210,687.36 is: 290,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,773.12 : 528,222.72 = 210,687.36 : x
  2. Step 2: Convert to fraction form
    382,773.12/528,222.72 = 210,687.36/x
  3. Step 3: Cross multiply
    382,773.12x = 528,222.72 × 210,687.36
  4. Step 4: Simplify right side
    382,773.12x = 111,289,850,368.82
  5. Step 5: Solve for x
    x = 111,289,850,368.82/382,773.12
  6. Step 6: Final answer
    x = 290,746.25

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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.