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Finding the Fourth Proportional to 353,517.09, 530,276.73 and 87,277.64

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Solution

The fourth proportional to 353,517.09, 530,276.73 and 87,277.64 is: 130,916.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,517.09 : 530,276.73 = 87,277.64 : x
  2. Step 2: Convert to fraction form
    353,517.09/530,276.73 = 87,277.64/x
  3. Step 3: Cross multiply
    353,517.09x = 530,276.73 × 87,277.64
  4. Step 4: Simplify right side
    353,517.09x = 46,281,298,889.93
  5. Step 5: Solve for x
    x = 46,281,298,889.93/353,517.09
  6. Step 6: Final answer
    x = 130,916.72

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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.