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Finding the Fourth Proportional to 372,639.40, 514,242.34 and 202,873.52

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Solution

The fourth proportional to 372,639.40, 514,242.34 and 202,873.52 is: 279,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,639.40 : 514,242.34 = 202,873.52 : x
  2. Step 2: Convert to fraction form
    372,639.40/514,242.34 = 202,873.52/x
  3. Step 3: Cross multiply
    372,639.40x = 514,242.34 × 202,873.52
  4. Step 4: Simplify right side
    372,639.40x = 104,326,153,648.84
  5. Step 5: Solve for x
    x = 104,326,153,648.84/372,639.40
  6. Step 6: Final answer
    x = 279,965.44

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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.