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Finding the Fourth Proportional to 219,350.60, 302,701.28 and 123,861.32

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Solution

The fourth proportional to 219,350.60, 302,701.28 and 123,861.32 is: 170,927.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,350.60 : 302,701.28 = 123,861.32 : x
  2. Step 2: Convert to fraction form
    219,350.60/302,701.28 = 123,861.32/x
  3. Step 3: Cross multiply
    219,350.60x = 302,701.28 × 123,861.32
  4. Step 4: Simplify right side
    219,350.60x = 37,492,977,973.68
  5. Step 5: Solve for x
    x = 37,492,977,973.68/219,350.60
  6. Step 6: Final answer
    x = 170,927.18

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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.