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Finding the Fourth Proportional to 268,810.60, 403,434.60 and 260,062.60

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Solution

The fourth proportional to 268,810.60, 403,434.60 and 260,062.60 is: 390,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,810.60 : 403,434.60 = 260,062.60 : x
  2. Step 2: Convert to fraction form
    268,810.60/403,434.60 = 260,062.60/x
  3. Step 3: Cross multiply
    268,810.60x = 403,434.60 × 260,062.60
  4. Step 4: Simplify right side
    268,810.60x = 104,918,251,005.96
  5. Step 5: Solve for x
    x = 104,918,251,005.96/268,810.60
  6. Step 6: Final answer
    x = 390,305.48

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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.