Home / 349,328.70-523,863.45-138,923.10

Finding the Fourth Proportional to 349,328.70, 523,863.45 and 138,923.10

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Solution

The fourth proportional to 349,328.70, 523,863.45 and 138,923.10 is: 208,333.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,328.70 : 523,863.45 = 138,923.10 : x
  2. Step 2: Convert to fraction form
    349,328.70/523,863.45 = 138,923.10/x
  3. Step 3: Cross multiply
    349,328.70x = 523,863.45 × 138,923.10
  4. Step 4: Simplify right side
    349,328.70x = 72,776,734,450.70
  5. Step 5: Solve for x
    x = 72,776,734,450.70/349,328.70
  6. Step 6: Final answer
    x = 208,333.11

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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.