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Finding the Fourth Proportional to 368,290.71, 508,200.06 and 207,142.32

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Solution

The fourth proportional to 368,290.71, 508,200.06 and 207,142.32 is: 285,833.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,290.71 : 508,200.06 = 207,142.32 : x
  2. Step 2: Convert to fraction form
    368,290.71/508,200.06 = 207,142.32/x
  3. Step 3: Cross multiply
    368,290.71x = 508,200.06 × 207,142.32
  4. Step 4: Simplify right side
    368,290.71x = 105,269,739,452.54
  5. Step 5: Solve for x
    x = 105,269,739,452.54/368,290.71
  6. Step 6: Final answer
    x = 285,833.27

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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.