Home / 429,296.82-643,945.23-148,814.07

Finding the Fourth Proportional to 429,296.82, 643,945.23 and 148,814.07

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Solution

The fourth proportional to 429,296.82, 643,945.23 and 148,814.07 is: 223,221.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,296.82 : 643,945.23 = 148,814.07 : x
  2. Step 2: Convert to fraction form
    429,296.82/643,945.23 = 148,814.07/x
  3. Step 3: Cross multiply
    429,296.82x = 643,945.23 × 148,814.07
  4. Step 4: Simplify right side
    429,296.82x = 95,828,110,533.39
  5. Step 5: Solve for x
    x = 95,828,110,533.39/429,296.82
  6. Step 6: Final answer
    x = 223,221.11

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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.