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Finding the Fourth Proportional to 211,248.84, 291,414.36 and 143,242.80

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Solution

The fourth proportional to 211,248.84, 291,414.36 and 143,242.80 is: 197,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,248.84 : 291,414.36 = 143,242.80 : x
  2. Step 2: Convert to fraction form
    211,248.84/291,414.36 = 143,242.80/x
  3. Step 3: Cross multiply
    211,248.84x = 291,414.36 × 143,242.80
  4. Step 4: Simplify right side
    211,248.84x = 41,743,008,886.61
  5. Step 5: Solve for x
    x = 41,743,008,886.61/211,248.84
  6. Step 6: Final answer
    x = 197,601.13

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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.