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Finding the Fourth Proportional to 219,290.25, 302,627.88 and 134,390.91

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Solution

The fourth proportional to 219,290.25, 302,627.88 and 134,390.91 is: 185,463.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,290.25 : 302,627.88 = 134,390.91 : x
  2. Step 2: Convert to fraction form
    219,290.25/302,627.88 = 134,390.91/x
  3. Step 3: Cross multiply
    219,290.25x = 302,627.88 × 134,390.91
  4. Step 4: Simplify right side
    219,290.25x = 40,670,436,184.57
  5. Step 5: Solve for x
    x = 40,670,436,184.57/219,290.25
  6. Step 6: Final answer
    x = 185,463.95

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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.