Home / 219,365.10-328,828.95-100,829.70

Finding the Fourth Proportional to 219,365.10, 328,828.95 and 100,829.70

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Solution

The fourth proportional to 219,365.10, 328,828.95 and 100,829.70 is: 151,144.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,365.10 : 328,828.95 = 100,829.70 : x
  2. Step 2: Convert to fraction form
    219,365.10/328,828.95 = 100,829.70/x
  3. Step 3: Cross multiply
    219,365.10x = 328,828.95 × 100,829.70
  4. Step 4: Simplify right side
    219,365.10x = 33,155,724,379.82
  5. Step 5: Solve for x
    x = 33,155,724,379.82/219,365.10
  6. Step 6: Final answer
    x = 151,144.03

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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.