Home / 346,378.20-478,110.78-203,196.12

Finding the Fourth Proportional to 346,378.20, 478,110.78 and 203,196.12

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Solution

The fourth proportional to 346,378.20, 478,110.78 and 203,196.12 is: 280,474.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,378.20 : 478,110.78 = 203,196.12 : x
  2. Step 2: Convert to fraction form
    346,378.20/478,110.78 = 203,196.12/x
  3. Step 3: Cross multiply
    346,378.20x = 478,110.78 × 203,196.12
  4. Step 4: Simplify right side
    346,378.20x = 97,150,255,426.17
  5. Step 5: Solve for x
    x = 97,150,255,426.17/346,378.20
  6. Step 6: Final answer
    x = 280,474.51

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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.