Home / 219,330.52-328,997.40-53,118.52

Finding the Fourth Proportional to 219,330.52, 328,997.40 and 53,118.52

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Solution

The fourth proportional to 219,330.52, 328,997.40 and 53,118.52 is: 79,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,330.52 : 328,997.40 = 53,118.52 : x
  2. Step 2: Convert to fraction form
    219,330.52/328,997.40 = 53,118.52/x
  3. Step 3: Cross multiply
    219,330.52x = 328,997.40 × 53,118.52
  4. Step 4: Simplify right side
    219,330.52x = 17,475,854,971.85
  5. Step 5: Solve for x
    x = 17,475,854,971.85/219,330.52
  6. Step 6: Final answer
    x = 79,678.17

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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.