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Finding the Fourth Proportional to 292,730.64, 403,976.28 and 165,403.68

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Solution

The fourth proportional to 292,730.64, 403,976.28 and 165,403.68 is: 228,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,730.64 : 403,976.28 = 165,403.68 : x
  2. Step 2: Convert to fraction form
    292,730.64/403,976.28 = 165,403.68/x
  3. Step 3: Cross multiply
    292,730.64x = 403,976.28 × 165,403.68
  4. Step 4: Simplify right side
    292,730.64x = 66,819,163,344.71
  5. Step 5: Solve for x
    x = 66,819,163,344.71/292,730.64
  6. Step 6: Final answer
    x = 228,261.60

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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.