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Finding the Fourth Proportional to 306,708.96, 423,612.62 and 204,556.93

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Solution

The fourth proportional to 306,708.96, 423,612.62 and 204,556.93 is: 282,524.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,708.96 : 423,612.62 = 204,556.93 : x
  2. Step 2: Convert to fraction form
    306,708.96/423,612.62 = 204,556.93/x
  3. Step 3: Cross multiply
    306,708.96x = 423,612.62 × 204,556.93
  4. Step 4: Simplify right side
    306,708.96x = 86,652,896,033.67
  5. Step 5: Solve for x
    x = 86,652,896,033.67/306,708.96
  6. Step 6: Final answer
    x = 282,524.83

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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.