Home / 219,338.50-329,009.40-53,126.50

Finding the Fourth Proportional to 219,338.50, 329,009.40 and 53,126.50

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Solution

The fourth proportional to 219,338.50, 329,009.40 and 53,126.50 is: 79,690.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,338.50 : 329,009.40 = 53,126.50 : x
  2. Step 2: Convert to fraction form
    219,338.50/329,009.40 = 53,126.50/x
  3. Step 3: Cross multiply
    219,338.50x = 329,009.40 × 53,126.50
  4. Step 4: Simplify right side
    219,338.50x = 17,479,117,889.10
  5. Step 5: Solve for x
    x = 17,479,117,889.10/219,338.50
  6. Step 6: Final answer
    x = 79,690.15

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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.