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Finding the Fourth Proportional to 250,075.29, 375,152 and 81,556.42

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Solution

The fourth proportional to 250,075.29, 375,152 and 81,556.42 is: 122,347.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,075.29 : 375,152 = 81,556.42 : x
  2. Step 2: Convert to fraction form
    250,075.29/375,152 = 81,556.42/x
  3. Step 3: Cross multiply
    250,075.29x = 375,152 × 81,556.42
  4. Step 4: Simplify right side
    250,075.29x = 30,596,054,075.84
  5. Step 5: Solve for x
    x = 30,596,054,075.84/250,075.29
  6. Step 6: Final answer
    x = 122,347.37

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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.