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Finding the Fourth Proportional to 346,099.40, 519,149.10 and 308,774.60

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Solution

The fourth proportional to 346,099.40, 519,149.10 and 308,774.60 is: 463,161.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,099.40 : 519,149.10 = 308,774.60 : x
  2. Step 2: Convert to fraction form
    346,099.40/519,149.10 = 308,774.60/x
  3. Step 3: Cross multiply
    346,099.40x = 519,149.10 × 308,774.60
  4. Step 4: Simplify right side
    346,099.40x = 160,300,055,692.86
  5. Step 5: Solve for x
    x = 160,300,055,692.86/346,099.40
  6. Step 6: Final answer
    x = 463,161.90

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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.