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Finding the Fourth Proportional to 369,135.60, 508,308.12 and 342,342.60

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Solution

The fourth proportional to 369,135.60, 508,308.12 and 342,342.60 is: 471,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,135.60 : 508,308.12 = 342,342.60 : x
  2. Step 2: Convert to fraction form
    369,135.60/508,308.12 = 342,342.60/x
  3. Step 3: Cross multiply
    369,135.60x = 508,308.12 × 342,342.60
  4. Step 4: Simplify right side
    369,135.60x = 174,015,523,401.91
  5. Step 5: Solve for x
    x = 174,015,523,401.91/369,135.60
  6. Step 6: Final answer
    x = 471,413.55

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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.