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Finding the Fourth Proportional to 368,317.54, 552,254.10 and 140,628.03

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Solution

The fourth proportional to 368,317.54, 552,254.10 and 140,628.03 is: 210,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,317.54 : 552,254.10 = 140,628.03 : x
  2. Step 2: Convert to fraction form
    368,317.54/552,254.10 = 140,628.03/x
  3. Step 3: Cross multiply
    368,317.54x = 552,254.10 × 140,628.03
  4. Step 4: Simplify right side
    368,317.54x = 77,662,406,142.42
  5. Step 5: Solve for x
    x = 77,662,406,142.42/368,317.54
  6. Step 6: Final answer
    x = 210,857.20

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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.