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Finding the Fourth Proportional to 354,519.95, 531,779.91 and 105,201.95

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Solution

The fourth proportional to 354,519.95, 531,779.91 and 105,201.95 is: 157,802.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,519.95 : 531,779.91 = 105,201.95 : x
  2. Step 2: Convert to fraction form
    354,519.95/531,779.91 = 105,201.95/x
  3. Step 3: Cross multiply
    354,519.95x = 531,779.91 × 105,201.95
  4. Step 4: Simplify right side
    354,519.95x = 55,944,280,843.93
  5. Step 5: Solve for x
    x = 55,944,280,843.93/354,519.95
  6. Step 6: Final answer
    x = 157,802.92

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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.