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Finding the Fourth Proportional to 475,993.08, 656,837.10 and 261,128.16

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Solution

The fourth proportional to 475,993.08, 656,837.10 and 261,128.16 is: 360,338.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,993.08 : 656,837.10 = 261,128.16 : x
  2. Step 2: Convert to fraction form
    475,993.08/656,837.10 = 261,128.16/x
  3. Step 3: Cross multiply
    475,993.08x = 656,837.10 × 261,128.16
  4. Step 4: Simplify right side
    475,993.08x = 171,518,663,342.74
  5. Step 5: Solve for x
    x = 171,518,663,342.74/475,993.08
  6. Step 6: Final answer
    x = 360,338.56

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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.