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Finding the Fourth Proportional to 358,488.73, 537,730.70 and 145,253.50

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Solution

The fourth proportional to 358,488.73, 537,730.70 and 145,253.50 is: 217,879.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,488.73 : 537,730.70 = 145,253.50 : x
  2. Step 2: Convert to fraction form
    358,488.73/537,730.70 = 145,253.50/x
  3. Step 3: Cross multiply
    358,488.73x = 537,730.70 × 145,253.50
  4. Step 4: Simplify right side
    358,488.73x = 78,107,263,543.80
  5. Step 5: Solve for x
    x = 78,107,263,543.80/358,488.73
  6. Step 6: Final answer
    x = 217,879.27

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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.