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Finding the Fourth Proportional to 254,317.31, 350,964.15 and 139,607.34

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Solution

The fourth proportional to 254,317.31, 350,964.15 and 139,607.34 is: 192,661.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,317.31 : 350,964.15 = 139,607.34 : x
  2. Step 2: Convert to fraction form
    254,317.31/350,964.15 = 139,607.34/x
  3. Step 3: Cross multiply
    254,317.31x = 350,964.15 × 139,607.34
  4. Step 4: Simplify right side
    254,317.31x = 48,997,171,416.86
  5. Step 5: Solve for x
    x = 48,997,171,416.86/254,317.31
  6. Step 6: Final answer
    x = 192,661.57

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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.