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Finding the Fourth Proportional to 207,510.72, 286,378.73 and 115,644.27

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Solution

The fourth proportional to 207,510.72, 286,378.73 and 115,644.27 is: 159,596.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,510.72 : 286,378.73 = 115,644.27 : x
  2. Step 2: Convert to fraction form
    207,510.72/286,378.73 = 115,644.27/x
  3. Step 3: Cross multiply
    207,510.72x = 286,378.73 × 115,644.27
  4. Step 4: Simplify right side
    207,510.72x = 33,118,058,596.16
  5. Step 5: Solve for x
    x = 33,118,058,596.16/207,510.72
  6. Step 6: Final answer
    x = 159,596.86

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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.