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Finding the Fourth Proportional to 328,007.54, 492,039.50 and 91,350.22

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Solution

The fourth proportional to 328,007.54, 492,039.50 and 91,350.22 is: 137,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,007.54 : 492,039.50 = 91,350.22 : x
  2. Step 2: Convert to fraction form
    328,007.54/492,039.50 = 91,350.22/x
  3. Step 3: Cross multiply
    328,007.54x = 492,039.50 × 91,350.22
  4. Step 4: Simplify right side
    328,007.54x = 44,947,913,656.74
  5. Step 5: Solve for x
    x = 44,947,913,656.74/328,007.54
  6. Step 6: Final answer
    x = 137,033.17

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1.5x scale

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.