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Finding the Fourth Proportional to 475,808.42, 656,616.39 and 260,949.79

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Solution

The fourth proportional to 475,808.42, 656,616.39 and 260,949.79 is: 360,111.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,808.42 : 656,616.39 = 260,949.79 : x
  2. Step 2: Convert to fraction form
    475,808.42/656,616.39 = 260,949.79/x
  3. Step 3: Cross multiply
    475,808.42x = 656,616.39 × 260,949.79
  4. Step 4: Simplify right side
    475,808.42x = 171,343,909,081.06
  5. Step 5: Solve for x
    x = 171,343,909,081.06/475,808.42
  6. Step 6: Final answer
    x = 360,111.13

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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.