Home / 258,734.90-388,075.04-69,214.38

Finding the Fourth Proportional to 258,734.90, 388,075.04 and 69,214.38

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Solution

The fourth proportional to 258,734.90, 388,075.04 and 69,214.38 is: 103,814.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,734.90 : 388,075.04 = 69,214.38 : x
  2. Step 2: Convert to fraction form
    258,734.90/388,075.04 = 69,214.38/x
  3. Step 3: Cross multiply
    258,734.90x = 388,075.04 × 69,214.38
  4. Step 4: Simplify right side
    258,734.90x = 26,860,373,287.08
  5. Step 5: Solve for x
    x = 26,860,373,287.08/258,734.90
  6. Step 6: Final answer
    x = 103,814.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.