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Finding the Fourth Proportional to 219,799.76, 303,330.88 and 143,368.88

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Solution

The fourth proportional to 219,799.76, 303,330.88 and 143,368.88 is: 197,853.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,799.76 : 303,330.88 = 143,368.88 : x
  2. Step 2: Convert to fraction form
    219,799.76/303,330.88 = 143,368.88/x
  3. Step 3: Cross multiply
    219,799.76x = 303,330.88 × 143,368.88
  4. Step 4: Simplify right side
    219,799.76x = 43,488,208,535.01
  5. Step 5: Solve for x
    x = 43,488,208,535.01/219,799.76
  6. Step 6: Final answer
    x = 197,853.76

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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.