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Finding the Fourth Proportional to 368,278.56, 508,188.53 and 207,130.23

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Solution

The fourth proportional to 368,278.56, 508,188.53 and 207,130.23 is: 285,819.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,278.56 : 508,188.53 = 207,130.23 : x
  2. Step 2: Convert to fraction form
    368,278.56/508,188.53 = 207,130.23/x
  3. Step 3: Cross multiply
    368,278.56x = 508,188.53 × 207,130.23
  4. Step 4: Simplify right side
    368,278.56x = 105,261,207,620.09
  5. Step 5: Solve for x
    x = 105,261,207,620.09/368,278.56
  6. Step 6: Final answer
    x = 285,819.54

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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.