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Finding the Fourth Proportional to 368,284.58, 508,227.70 and 207,139.56

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Solution

The fourth proportional to 368,284.58, 508,227.70 and 207,139.56 is: 285,849.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,284.58 : 508,227.70 = 207,139.56 : x
  2. Step 2: Convert to fraction form
    368,284.58/508,227.70 = 207,139.56/x
  3. Step 3: Cross multiply
    368,284.58x = 508,227.70 × 207,139.56
  4. Step 4: Simplify right side
    368,284.58x = 105,274,062,157.81
  5. Step 5: Solve for x
    x = 105,274,062,157.81/368,284.58
  6. Step 6: Final answer
    x = 285,849.77

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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.