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Finding the Fourth Proportional to 254,223.34, 350,827.25 and 139,503.90

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Solution

The fourth proportional to 254,223.34, 350,827.25 and 139,503.90 is: 192,514.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,223.34 : 350,827.25 = 139,503.90 : x
  2. Step 2: Convert to fraction form
    254,223.34/350,827.25 = 139,503.90/x
  3. Step 3: Cross multiply
    254,223.34x = 350,827.25 × 139,503.90
  4. Step 4: Simplify right side
    254,223.34x = 48,941,771,004.07
  5. Step 5: Solve for x
    x = 48,941,771,004.07/254,223.34
  6. Step 6: Final answer
    x = 192,514.86

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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.