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Finding the Fourth Proportional to 358,518, 537,777 and 109,200

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Solution

The fourth proportional to 358,518, 537,777 and 109,200 is: 163,800

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,518 : 537,777 = 109,200 : x
  2. Step 2: Convert to fraction form
    358,518/537,777 = 109,200/x
  3. Step 3: Cross multiply
    358,518x = 537,777 × 109,200
  4. Step 4: Simplify right side
    358,518x = 58,725,248,400
  5. Step 5: Solve for x
    x = 58,725,248,400/358,518
  6. Step 6: Final answer
    x = 163,800

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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.