Home / 379,278.04-569,141.50-139,560.27

Finding the Fourth Proportional to 379,278.04, 569,141.50 and 139,560.27

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Solution

The fourth proportional to 379,278.04, 569,141.50 and 139,560.27 is: 209,422.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,278.04 : 569,141.50 = 139,560.27 : x
  2. Step 2: Convert to fraction form
    379,278.04/569,141.50 = 139,560.27/x
  3. Step 3: Cross multiply
    379,278.04x = 569,141.50 × 139,560.27
  4. Step 4: Simplify right side
    379,278.04x = 79,429,541,408.21
  5. Step 5: Solve for x
    x = 79,429,541,408.21/379,278.04
  6. Step 6: Final answer
    x = 209,422.99

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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.