Home / 356,023.05-491,312.35-194,888.30

Finding the Fourth Proportional to 356,023.05, 491,312.35 and 194,888.30

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Solution

The fourth proportional to 356,023.05, 491,312.35 and 194,888.30 is: 268,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,023.05 : 491,312.35 = 194,888.30 : x
  2. Step 2: Convert to fraction form
    356,023.05/491,312.35 = 194,888.30/x
  3. Step 3: Cross multiply
    356,023.05x = 491,312.35 × 194,888.30
  4. Step 4: Simplify right side
    356,023.05x = 95,751,026,447.55
  5. Step 5: Solve for x
    x = 95,751,026,447.55/356,023.05
  6. Step 6: Final answer
    x = 268,946.15

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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.