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Finding the Fourth Proportional to 368,727.04, 508,290.42 and 300,639.52

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Solution

The fourth proportional to 368,727.04, 508,290.42 and 300,639.52 is: 414,431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,727.04 : 508,290.42 = 300,639.52 : x
  2. Step 2: Convert to fraction form
    368,727.04/508,290.42 = 300,639.52/x
  3. Step 3: Cross multiply
    368,727.04x = 508,290.42 × 300,639.52
  4. Step 4: Simplify right side
    368,727.04x = 152,812,187,889.40
  5. Step 5: Solve for x
    x = 152,812,187,889.40/368,727.04
  6. Step 6: Final answer
    x = 414,431.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.