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Finding the Fourth Proportional to 510,480.57, 765,692.91 and 155,464.86

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Solution

The fourth proportional to 510,480.57, 765,692.91 and 155,464.86 is: 233,188.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,480.57 : 765,692.91 = 155,464.86 : x
  2. Step 2: Convert to fraction form
    510,480.57/765,692.91 = 155,464.86/x
  3. Step 3: Cross multiply
    510,480.57x = 765,692.91 × 155,464.86
  4. Step 4: Simplify right side
    510,480.57x = 119,038,341,056.14
  5. Step 5: Solve for x
    x = 119,038,341,056.14/510,480.57
  6. Step 6: Final answer
    x = 233,188.78

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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.