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Finding the Fourth Proportional to 259,391.72, 358,127.18 and 162,728.11

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Solution

The fourth proportional to 259,391.72, 358,127.18 and 162,728.11 is: 224,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,391.72 : 358,127.18 = 162,728.11 : x
  2. Step 2: Convert to fraction form
    259,391.72/358,127.18 = 162,728.11/x
  3. Step 3: Cross multiply
    259,391.72x = 358,127.18 × 162,728.11
  4. Step 4: Simplify right side
    259,391.72x = 58,277,356,536.75
  5. Step 5: Solve for x
    x = 58,277,356,536.75/259,391.72
  6. Step 6: Final answer
    x = 224,669.30

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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.