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Finding the Fourth Proportional to 357,759.09, 536,657.01 and 91,521.91

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Solution

The fourth proportional to 357,759.09, 536,657.01 and 91,521.91 is: 137,287.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,759.09 : 536,657.01 = 91,521.91 : x
  2. Step 2: Convert to fraction form
    357,759.09/536,657.01 = 91,521.91/x
  3. Step 3: Cross multiply
    357,759.09x = 536,657.01 × 91,521.91
  4. Step 4: Simplify right side
    357,759.09x = 49,115,874,570.09
  5. Step 5: Solve for x
    x = 49,115,874,570.09/357,759.09
  6. Step 6: Final answer
    x = 137,287.57

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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.