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Finding the Fourth Proportional to 310,504.58, 428,541.69 and 174,549.72

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Solution

The fourth proportional to 310,504.58, 428,541.69 and 174,549.72 is: 240,904.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,504.58 : 428,541.69 = 174,549.72 : x
  2. Step 2: Convert to fraction form
    310,504.58/428,541.69 = 174,549.72/x
  3. Step 3: Cross multiply
    310,504.58x = 428,541.69 × 174,549.72
  4. Step 4: Simplify right side
    310,504.58x = 74,801,831,997.83
  5. Step 5: Solve for x
    x = 74,801,831,997.83/310,504.58
  6. Step 6: Final answer
    x = 240,904.12

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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.