Home / 257,215.24-385,511.82-132,488.20

Finding the Fourth Proportional to 257,215.24, 385,511.82 and 132,488.20

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Solution

The fourth proportional to 257,215.24, 385,511.82 and 132,488.20 is: 198,572.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,215.24 : 385,511.82 = 132,488.20 : x
  2. Step 2: Convert to fraction form
    257,215.24/385,511.82 = 132,488.20/x
  3. Step 3: Cross multiply
    257,215.24x = 385,511.82 × 132,488.20
  4. Step 4: Simplify right side
    257,215.24x = 51,075,767,110.52
  5. Step 5: Solve for x
    x = 51,075,767,110.52/257,215.24
  6. Step 6: Final answer
    x = 198,572.09

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1.5x scale

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.