Home / 372,839.70-514,531.67-211,689.39

Finding the Fourth Proportional to 372,839.70, 514,531.67 and 211,689.39

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Solution

The fourth proportional to 372,839.70, 514,531.67 and 211,689.39 is: 292,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,839.70 : 514,531.67 = 211,689.39 : x
  2. Step 2: Convert to fraction form
    372,839.70/514,531.67 = 211,689.39/x
  3. Step 3: Cross multiply
    372,839.70x = 514,531.67 × 211,689.39
  4. Step 4: Simplify right side
    372,839.70x = 108,920,894,299.53
  5. Step 5: Solve for x
    x = 108,920,894,299.53/372,839.70
  6. Step 6: Final answer
    x = 292,138.67

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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.