Home / 382,075.90-527,270.21-210,009.78

Finding the Fourth Proportional to 382,075.90, 527,270.21 and 210,009.78

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Solution

The fourth proportional to 382,075.90, 527,270.21 and 210,009.78 is: 289,816.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,075.90 : 527,270.21 = 210,009.78 : x
  2. Step 2: Convert to fraction form
    382,075.90/527,270.21 = 210,009.78/x
  3. Step 3: Cross multiply
    382,075.90x = 527,270.21 × 210,009.78
  4. Step 4: Simplify right side
    382,075.90x = 110,731,897,116.25
  5. Step 5: Solve for x
    x = 110,731,897,116.25/382,075.90
  6. Step 6: Final answer
    x = 289,816.49

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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.