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Finding the Fourth Proportional to 368,371.40, 552,557.10 and 210,615.80

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Solution

The fourth proportional to 368,371.40, 552,557.10 and 210,615.80 is: 315,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,371.40 : 552,557.10 = 210,615.80 : x
  2. Step 2: Convert to fraction form
    368,371.40/552,557.10 = 210,615.80/x
  3. Step 3: Cross multiply
    368,371.40x = 552,557.10 × 210,615.80
  4. Step 4: Simplify right side
    368,371.40x = 116,377,255,662.18
  5. Step 5: Solve for x
    x = 116,377,255,662.18/368,371.40
  6. Step 6: Final answer
    x = 315,923.70

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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.