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Finding the Fourth Proportional to 368,151.88, 508,047.04 and 209,175.88

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Solution

The fourth proportional to 368,151.88, 508,047.04 and 209,175.88 is: 288,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,151.88 : 508,047.04 = 209,175.88 : x
  2. Step 2: Convert to fraction form
    368,151.88/508,047.04 = 209,175.88/x
  3. Step 3: Cross multiply
    368,151.88x = 508,047.04 × 209,175.88
  4. Step 4: Simplify right side
    368,151.88x = 106,271,186,673.40
  5. Step 5: Solve for x
    x = 106,271,186,673.40/368,151.88
  6. Step 6: Final answer
    x = 288,661.26

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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.