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Finding the Fourth Proportional to 368,768.99, 508,910.71 and 207,629.72

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Solution

The fourth proportional to 368,768.99, 508,910.71 and 207,629.72 is: 286,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,768.99 : 508,910.71 = 207,629.72 : x
  2. Step 2: Convert to fraction form
    368,768.99/508,910.71 = 207,629.72/x
  3. Step 3: Cross multiply
    368,768.99x = 508,910.71 × 207,629.72
  4. Step 4: Simplify right side
    368,768.99x = 105,664,988,222.30
  5. Step 5: Solve for x
    x = 105,664,988,222.30/368,768.99
  6. Step 6: Final answer
    x = 286,534.36

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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.