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Finding the Fourth Proportional to 346,571.80, 478,310.52 and 210,627.88

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Solution

The fourth proportional to 346,571.80, 478,310.52 and 210,627.88 is: 290,691.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,571.80 : 478,310.52 = 210,627.88 : x
  2. Step 2: Convert to fraction form
    346,571.80/478,310.52 = 210,627.88/x
  3. Step 3: Cross multiply
    346,571.80x = 478,310.52 × 210,627.88
  4. Step 4: Simplify right side
    346,571.80x = 100,745,530,809.30
  5. Step 5: Solve for x
    x = 100,745,530,809.30/346,571.80
  6. Step 6: Final answer
    x = 290,691.66

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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.