Home / 219,364.10-328,827.45-100,828.70

Finding the Fourth Proportional to 219,364.10, 328,827.45 and 100,828.70

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Solution

The fourth proportional to 219,364.10, 328,827.45 and 100,828.70 is: 151,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,364.10 : 328,827.45 = 100,828.70 : x
  2. Step 2: Convert to fraction form
    219,364.10/328,827.45 = 100,828.70/x
  3. Step 3: Cross multiply
    219,364.10x = 328,827.45 × 100,828.70
  4. Step 4: Simplify right side
    219,364.10x = 33,155,244,307.82
  5. Step 5: Solve for x
    x = 33,155,244,307.82/219,364.10
  6. Step 6: Final answer
    x = 151,142.53

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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.