Home / 382,211.88-527,438.96-210,128.60

Finding the Fourth Proportional to 382,211.88, 527,438.96 and 210,128.60

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Solution

The fourth proportional to 382,211.88, 527,438.96 and 210,128.60 is: 289,970.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,211.88 : 527,438.96 = 210,128.60 : x
  2. Step 2: Convert to fraction form
    382,211.88/527,438.96 = 210,128.60/x
  3. Step 3: Cross multiply
    382,211.88x = 527,438.96 × 210,128.60
  4. Step 4: Simplify right side
    382,211.88x = 110,830,010,250.26
  5. Step 5: Solve for x
    x = 110,830,010,250.26/382,211.88
  6. Step 6: Final answer
    x = 289,970.08

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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.