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Finding the Fourth Proportional to 315,998.01, 435,989.39 and 188,627.13

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Solution

The fourth proportional to 315,998.01, 435,989.39 and 188,627.13 is: 260,252.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,998.01 : 435,989.39 = 188,627.13 : x
  2. Step 2: Convert to fraction form
    315,998.01/435,989.39 = 188,627.13/x
  3. Step 3: Cross multiply
    315,998.01x = 435,989.39 × 188,627.13
  4. Step 4: Simplify right side
    315,998.01x = 82,239,426,403.02
  5. Step 5: Solve for x
    x = 82,239,426,403.02/315,998.01
  6. Step 6: Final answer
    x = 260,252.99

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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.