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Finding the Fourth Proportional to 585.13, 877.71 and 277.13

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Solution

The fourth proportional to 585.13, 877.71 and 277.13 is: 415.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.13 : 877.71 = 277.13 : x
  2. Step 2: Convert to fraction form
    585.13/877.71 = 277.13/x
  3. Step 3: Cross multiply
    585.13x = 877.71 × 277.13
  4. Step 4: Simplify right side
    585.13x = 243,239.77
  5. Step 5: Solve for x
    x = 243,239.77/585.13
  6. Step 6: Final answer
    x = 415.70

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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.