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Finding the Fourth Proportional to 128,322.48, 192,483.81 and 34,828.23

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Solution

The fourth proportional to 128,322.48, 192,483.81 and 34,828.23 is: 52,242.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,322.48 : 192,483.81 = 34,828.23 : x
  2. Step 2: Convert to fraction form
    128,322.48/192,483.81 = 34,828.23/x
  3. Step 3: Cross multiply
    128,322.48x = 192,483.81 × 34,828.23
  4. Step 4: Simplify right side
    128,322.48x = 6,703,870,405.96
  5. Step 5: Solve for x
    x = 6,703,870,405.96/128,322.48
  6. Step 6: Final answer
    x = 52,242.37

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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.