Home / 349,922.50-524,961.51-128,306.50

Finding the Fourth Proportional to 349,922.50, 524,961.51 and 128,306.50

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Solution

The fourth proportional to 349,922.50, 524,961.51 and 128,306.50 is: 192,488.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,922.50 : 524,961.51 = 128,306.50 : x
  2. Step 2: Convert to fraction form
    349,922.50/524,961.51 = 128,306.50/x
  3. Step 3: Cross multiply
    349,922.50x = 524,961.51 × 128,306.50
  4. Step 4: Simplify right side
    349,922.50x = 67,355,973,982.82
  5. Step 5: Solve for x
    x = 67,355,973,982.82/349,922.50
  6. Step 6: Final answer
    x = 192,488.26

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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.