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Finding the Fourth Proportional to 265,583.57, 398,333.99 and 145,699.52

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Solution

The fourth proportional to 265,583.57, 398,333.99 and 145,699.52 is: 218,526.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,583.57 : 398,333.99 = 145,699.52 : x
  2. Step 2: Convert to fraction form
    265,583.57/398,333.99 = 145,699.52/x
  3. Step 3: Cross multiply
    265,583.57x = 398,333.99 × 145,699.52
  4. Step 4: Simplify right side
    265,583.57x = 58,037,068,422.52
  5. Step 5: Solve for x
    x = 58,037,068,422.52/265,583.57
  6. Step 6: Final answer
    x = 218,526.58

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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.