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Finding the Fourth Proportional to 207,453.72, 286,287.30 and 118,029.72

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Solution

The fourth proportional to 207,453.72, 286,287.30 and 118,029.72 is: 162,881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,453.72 : 286,287.30 = 118,029.72 : x
  2. Step 2: Convert to fraction form
    207,453.72/286,287.30 = 118,029.72/x
  3. Step 3: Cross multiply
    207,453.72x = 286,287.30 × 118,029.72
  4. Step 4: Simplify right side
    207,453.72x = 33,790,409,858.56
  5. Step 5: Solve for x
    x = 33,790,409,858.56/207,453.72
  6. Step 6: Final answer
    x = 162,881.68

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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.