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Finding the Fourth Proportional to 358,065, 494,130.24 and 207,171.72

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Solution

The fourth proportional to 358,065, 494,130.24 and 207,171.72 is: 285,897.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,065 : 494,130.24 = 207,171.72 : x
  2. Step 2: Convert to fraction form
    358,065/494,130.24 = 207,171.72/x
  3. Step 3: Cross multiply
    358,065x = 494,130.24 × 207,171.72
  4. Step 4: Simplify right side
    358,065x = 102,369,811,724.81
  5. Step 5: Solve for x
    x = 102,369,811,724.81/358,065
  6. Step 6: Final answer
    x = 285,897.29

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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.