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Finding the Fourth Proportional to 356,364.84, 491,662.86 and 211,125.24

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Solution

The fourth proportional to 356,364.84, 491,662.86 and 211,125.24 is: 291,281.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,364.84 : 491,662.86 = 211,125.24 : x
  2. Step 2: Convert to fraction form
    356,364.84/491,662.86 = 211,125.24/x
  3. Step 3: Cross multiply
    356,364.84x = 491,662.86 × 211,125.24
  4. Step 4: Simplify right side
    356,364.84x = 103,802,439,316.59
  5. Step 5: Solve for x
    x = 103,802,439,316.59/356,364.84
  6. Step 6: Final answer
    x = 291,281.37

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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.