Home / 219,330.50-328,997.40-53,118.50

Finding the Fourth Proportional to 219,330.50, 328,997.40 and 53,118.50

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Solution

The fourth proportional to 219,330.50, 328,997.40 and 53,118.50 is: 79,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,330.50 : 328,997.40 = 53,118.50 : x
  2. Step 2: Convert to fraction form
    219,330.50/328,997.40 = 53,118.50/x
  3. Step 3: Cross multiply
    219,330.50x = 328,997.40 × 53,118.50
  4. Step 4: Simplify right side
    219,330.50x = 17,475,848,391.90
  5. Step 5: Solve for x
    x = 17,475,848,391.90/219,330.50
  6. Step 6: Final answer
    x = 79,678.15

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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.