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Finding the Fourth Proportional to 306,941.60, 460,321.68 and 138,364.64

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Solution

The fourth proportional to 306,941.60, 460,321.68 and 138,364.64 is: 207,506.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,941.60 : 460,321.68 = 138,364.64 : x
  2. Step 2: Convert to fraction form
    306,941.60/460,321.68 = 138,364.64/x
  3. Step 3: Cross multiply
    306,941.60x = 460,321.68 × 138,364.64
  4. Step 4: Simplify right side
    306,941.60x = 63,692,243,537.40
  5. Step 5: Solve for x
    x = 63,692,243,537.40/306,941.60
  6. Step 6: Final answer
    x = 207,506.06

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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.