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Finding the Fourth Proportional to 346,373.32, 478,074.87 and 203,179.49

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Solution

The fourth proportional to 346,373.32, 478,074.87 and 203,179.49 is: 280,434.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,373.32 : 478,074.87 = 203,179.49 : x
  2. Step 2: Convert to fraction form
    346,373.32/478,074.87 = 203,179.49/x
  3. Step 3: Cross multiply
    346,373.32x = 478,074.87 × 203,179.49
  4. Step 4: Simplify right side
    346,373.32x = 97,135,008,268.42
  5. Step 5: Solve for x
    x = 97,135,008,268.42/346,373.32
  6. Step 6: Final answer
    x = 280,434.44

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1.5x scale

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.