Home / 257,600.98-355,422.09-148,678.66

Finding the Fourth Proportional to 257,600.98, 355,422.09 and 148,678.66

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Solution

The fourth proportional to 257,600.98, 355,422.09 and 148,678.66 is: 205,137.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,600.98 : 355,422.09 = 148,678.66 : x
  2. Step 2: Convert to fraction form
    257,600.98/355,422.09 = 148,678.66/x
  3. Step 3: Cross multiply
    257,600.98x = 355,422.09 × 148,678.66
  4. Step 4: Simplify right side
    257,600.98x = 52,843,680,075.60
  5. Step 5: Solve for x
    x = 52,843,680,075.60/257,600.98
  6. Step 6: Final answer
    x = 205,137.73

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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.