Home / 379,545.36-523,773.09-218,397.21

Finding the Fourth Proportional to 379,545.36, 523,773.09 and 218,397.21

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Solution

The fourth proportional to 379,545.36, 523,773.09 and 218,397.21 is: 301,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,545.36 : 523,773.09 = 218,397.21 : x
  2. Step 2: Convert to fraction form
    379,545.36/523,773.09 = 218,397.21/x
  3. Step 3: Cross multiply
    379,545.36x = 523,773.09 × 218,397.21
  4. Step 4: Simplify right side
    379,545.36x = 114,390,581,529.08
  5. Step 5: Solve for x
    x = 114,390,581,529.08/379,545.36
  6. Step 6: Final answer
    x = 301,388.43

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1.5x scale

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.