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Finding the Fourth Proportional to 207,032.55, 285,697.55 and 115,151.35

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Solution

The fourth proportional to 207,032.55, 285,697.55 and 115,151.35 is: 158,904.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,032.55 : 285,697.55 = 115,151.35 : x
  2. Step 2: Convert to fraction form
    207,032.55/285,697.55 = 115,151.35/x
  3. Step 3: Cross multiply
    207,032.55x = 285,697.55 × 115,151.35
  4. Step 4: Simplify right side
    207,032.55x = 32,898,457,998.44
  5. Step 5: Solve for x
    x = 32,898,457,998.44/207,032.55
  6. Step 6: Final answer
    x = 158,904.76

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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.