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Finding the Fourth Proportional to 358,826.94, 537,838.11 and 145,545.30

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Solution

The fourth proportional to 358,826.94, 537,838.11 and 145,545.30 is: 218,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,826.94 : 537,838.11 = 145,545.30 : x
  2. Step 2: Convert to fraction form
    358,826.94/537,838.11 = 145,545.30/x
  3. Step 3: Cross multiply
    358,826.94x = 537,838.11 × 145,545.30
  4. Step 4: Simplify right side
    358,826.94x = 78,279,809,071.38
  5. Step 5: Solve for x
    x = 78,279,809,071.38/358,826.94
  6. Step 6: Final answer
    x = 218,154.77

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Why These Related Problems?

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