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Finding the Fourth Proportional to 219,383.72, 329,075.58 and 53,171.72

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Solution

The fourth proportional to 219,383.72, 329,075.58 and 53,171.72 is: 79,757.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,383.72 : 329,075.58 = 53,171.72 : x
  2. Step 2: Convert to fraction form
    219,383.72/329,075.58 = 53,171.72/x
  3. Step 3: Cross multiply
    219,383.72x = 329,075.58 × 53,171.72
  4. Step 4: Simplify right side
    219,383.72x = 17,497,514,386.65
  5. Step 5: Solve for x
    x = 17,497,514,386.65/219,383.72
  6. Step 6: Final answer
    x = 79,757.58

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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.