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Finding the Fourth Proportional to 555.66, 832.68 and 291.87

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Solution

The fourth proportional to 555.66, 832.68 and 291.87 is: 437.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.66 : 832.68 = 291.87 : x
  2. Step 2: Convert to fraction form
    555.66/832.68 = 291.87/x
  3. Step 3: Cross multiply
    555.66x = 832.68 × 291.87
  4. Step 4: Simplify right side
    555.66x = 243,034.31
  5. Step 5: Solve for x
    x = 243,034.31/555.66
  6. Step 6: Final answer
    x = 437.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.