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Finding the Fourth Proportional to 205,885.60, 307,458.28 and 203,658.96

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Solution

The fourth proportional to 205,885.60, 307,458.28 and 203,658.96 is: 304,133.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,885.60 : 307,458.28 = 203,658.96 : x
  2. Step 2: Convert to fraction form
    205,885.60/307,458.28 = 203,658.96/x
  3. Step 3: Cross multiply
    205,885.60x = 307,458.28 × 203,658.96
  4. Step 4: Simplify right side
    205,885.60x = 62,616,633,226.28
  5. Step 5: Solve for x
    x = 62,616,633,226.28/205,885.60
  6. Step 6: Final answer
    x = 304,133.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.