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Finding the Fourth Proportional to 357,834.76, 536,720.78 and 121,172.04

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Solution

The fourth proportional to 357,834.76, 536,720.78 and 121,172.04 is: 181,747.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,834.76 : 536,720.78 = 121,172.04 : x
  2. Step 2: Convert to fraction form
    357,834.76/536,720.78 = 121,172.04/x
  3. Step 3: Cross multiply
    357,834.76x = 536,720.78 × 121,172.04
  4. Step 4: Simplify right side
    357,834.76x = 65,035,551,822.99
  5. Step 5: Solve for x
    x = 65,035,551,822.99/357,834.76
  6. Step 6: Final answer
    x = 181,747.44

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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.