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Finding the Fourth Proportional to 368,358.93, 508,331.66 and 205,012.71

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Solution

The fourth proportional to 368,358.93, 508,331.66 and 205,012.71 is: 282,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,358.93 : 508,331.66 = 205,012.71 : x
  2. Step 2: Convert to fraction form
    368,358.93/508,331.66 = 205,012.71/x
  3. Step 3: Cross multiply
    368,358.93x = 508,331.66 × 205,012.71
  4. Step 4: Simplify right side
    368,358.93x = 104,214,450,170.34
  5. Step 5: Solve for x
    x = 104,214,450,170.34/368,358.93
  6. Step 6: Final answer
    x = 282,915.50

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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.