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Finding the Fourth Proportional to 403,099.22, 556,090.80 and 259,905.26

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Solution

The fourth proportional to 403,099.22, 556,090.80 and 259,905.26 is: 358,549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,099.22 : 556,090.80 = 259,905.26 : x
  2. Step 2: Convert to fraction form
    403,099.22/556,090.80 = 259,905.26/x
  3. Step 3: Cross multiply
    403,099.22x = 556,090.80 × 259,905.26
  4. Step 4: Simplify right side
    403,099.22x = 144,530,923,957.61
  5. Step 5: Solve for x
    x = 144,530,923,957.61/403,099.22
  6. Step 6: Final answer
    x = 358,549.25

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1.5x scale

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.