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Finding the Fourth Proportional to 254,627.70, 351,385.56 and 139,887.96

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Solution

The fourth proportional to 254,627.70, 351,385.56 and 139,887.96 is: 193,045.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,627.70 : 351,385.56 = 139,887.96 : x
  2. Step 2: Convert to fraction form
    254,627.70/351,385.56 = 139,887.96/x
  3. Step 3: Cross multiply
    254,627.70x = 351,385.56 × 139,887.96
  4. Step 4: Simplify right side
    254,627.70x = 49,154,609,161.86
  5. Step 5: Solve for x
    x = 49,154,609,161.86/254,627.70
  6. Step 6: Final answer
    x = 193,045.02

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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.