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Finding the Fourth Proportional to 356,019.84, 491,310.42 and 203,065.77

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Solution

The fourth proportional to 356,019.84, 491,310.42 and 203,065.77 is: 280,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,019.84 : 491,310.42 = 203,065.77 : x
  2. Step 2: Convert to fraction form
    356,019.84/491,310.42 = 203,065.77/x
  3. Step 3: Cross multiply
    356,019.84x = 491,310.42 × 203,065.77
  4. Step 4: Simplify right side
    356,019.84x = 99,768,328,746.32
  5. Step 5: Solve for x
    x = 99,768,328,746.32/356,019.84
  6. Step 6: Final answer
    x = 280,232.50

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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.