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Finding the Fourth Proportional to 341,421.28, 471,192.64 and 188,486.88

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Solution

The fourth proportional to 341,421.28, 471,192.64 and 188,486.88 is: 260,129.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,421.28 : 471,192.64 = 188,486.88 : x
  2. Step 2: Convert to fraction form
    341,421.28/471,192.64 = 188,486.88/x
  3. Step 3: Cross multiply
    341,421.28x = 471,192.64 × 188,486.88
  4. Step 4: Simplify right side
    341,421.28x = 88,813,630,592.56
  5. Step 5: Solve for x
    x = 88,813,630,592.56/341,421.28
  6. Step 6: Final answer
    x = 260,129.16

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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.