Home / 379,220.42-523,327.38-209,457.38

Finding the Fourth Proportional to 379,220.42, 523,327.38 and 209,457.38

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Solution

The fourth proportional to 379,220.42, 523,327.38 and 209,457.38 is: 289,052.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,220.42 : 523,327.38 = 209,457.38 : x
  2. Step 2: Convert to fraction form
    379,220.42/523,327.38 = 209,457.38/x
  3. Step 3: Cross multiply
    379,220.42x = 523,327.38 × 209,457.38
  4. Step 4: Simplify right side
    379,220.42x = 109,614,781,897.06
  5. Step 5: Solve for x
    x = 109,614,781,897.06/379,220.42
  6. Step 6: Final answer
    x = 289,052.95

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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.