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Finding the Fourth Proportional to 358,041.20, 537,021.50 and 91,807.97

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Solution

The fourth proportional to 358,041.20, 537,021.50 and 91,807.97 is: 137,701.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,041.20 : 537,021.50 = 91,807.97 : x
  2. Step 2: Convert to fraction form
    358,041.20/537,021.50 = 91,807.97/x
  3. Step 3: Cross multiply
    358,041.20x = 537,021.50 × 91,807.97
  4. Step 4: Simplify right side
    358,041.20x = 49,302,850,617.21
  5. Step 5: Solve for x
    x = 49,302,850,617.21/358,041.20
  6. Step 6: Final answer
    x = 137,701.61

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.