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Finding the Fourth Proportional to 309,277.29, 426,795.72 and 180,207.72

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Solution

The fourth proportional to 309,277.29, 426,795.72 and 180,207.72 is: 248,682.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,277.29 : 426,795.72 = 180,207.72 : x
  2. Step 2: Convert to fraction form
    309,277.29/426,795.72 = 180,207.72/x
  3. Step 3: Cross multiply
    309,277.29x = 426,795.72 × 180,207.72
  4. Step 4: Simplify right side
    309,277.29x = 76,911,883,606.96
  5. Step 5: Solve for x
    x = 76,911,883,606.96/309,277.29
  6. Step 6: Final answer
    x = 248,682.61

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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.