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Finding the Fourth Proportional to 349,781.40, 524,672.10 and 265,800.60

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Solution

The fourth proportional to 349,781.40, 524,672.10 and 265,800.60 is: 398,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,781.40 : 524,672.10 = 265,800.60 : x
  2. Step 2: Convert to fraction form
    349,781.40/524,672.10 = 265,800.60/x
  3. Step 3: Cross multiply
    349,781.40x = 524,672.10 × 265,800.60
  4. Step 4: Simplify right side
    349,781.40x = 139,458,158,983.26
  5. Step 5: Solve for x
    x = 139,458,158,983.26/349,781.40
  6. Step 6: Final answer
    x = 398,700.90

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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.