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Finding the Fourth Proportional to 352,603, 528,901.98 and 142,092.28

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Solution

The fourth proportional to 352,603, 528,901.98 and 142,092.28 is: 213,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,603 : 528,901.98 = 142,092.28 : x
  2. Step 2: Convert to fraction form
    352,603/528,901.98 = 142,092.28/x
  3. Step 3: Cross multiply
    352,603x = 528,901.98 × 142,092.28
  4. Step 4: Simplify right side
    352,603x = 75,152,888,234.71
  5. Step 5: Solve for x
    x = 75,152,888,234.71/352,603
  6. Step 6: Final answer
    x = 213,137.40

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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.