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Finding the Fourth Proportional to 492,400.53, 738,323.76 and 155,378.37

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Solution

The fourth proportional to 492,400.53, 738,323.76 and 155,378.37 is: 232,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,400.53 : 738,323.76 = 155,378.37 : x
  2. Step 2: Convert to fraction form
    492,400.53/738,323.76 = 155,378.37/x
  3. Step 3: Cross multiply
    492,400.53x = 738,323.76 × 155,378.37
  4. Step 4: Simplify right side
    492,400.53x = 114,719,539,057.90
  5. Step 5: Solve for x
    x = 114,719,539,057.90/492,400.53
  6. Step 6: Final answer
    x = 232,980.13

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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.