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Finding the Fourth Proportional to 343,374.69, 515,135.85 and 115,692.94

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Solution

The fourth proportional to 343,374.69, 515,135.85 and 115,692.94 is: 173,564.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,374.69 : 515,135.85 = 115,692.94 : x
  2. Step 2: Convert to fraction form
    343,374.69/515,135.85 = 115,692.94/x
  3. Step 3: Cross multiply
    343,374.69x = 515,135.85 × 115,692.94
  4. Step 4: Simplify right side
    343,374.69x = 59,597,577,831.76
  5. Step 5: Solve for x
    x = 59,597,577,831.76/343,374.69
  6. Step 6: Final answer
    x = 173,564.27

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1.5x scale

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.