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Finding the Fourth Proportional to 208,227.70, 312,159.30 and 141,451.30

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Solution

The fourth proportional to 208,227.70, 312,159.30 and 141,451.30 is: 212,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,227.70 : 312,159.30 = 141,451.30 : x
  2. Step 2: Convert to fraction form
    208,227.70/312,159.30 = 141,451.30/x
  3. Step 3: Cross multiply
    208,227.70x = 312,159.30 × 141,451.30
  4. Step 4: Simplify right side
    208,227.70x = 44,155,338,792.09
  5. Step 5: Solve for x
    x = 44,155,338,792.09/208,227.70
  6. Step 6: Final answer
    x = 212,053.15

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1.5x scale

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.