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Finding the Fourth Proportional to 254,603.69, 351,358.96 and 139,889.49

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Solution

The fourth proportional to 254,603.69, 351,358.96 and 139,889.49 is: 193,050.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,603.69 : 351,358.96 = 139,889.49 : x
  2. Step 2: Convert to fraction form
    254,603.69/351,358.96 = 139,889.49/x
  3. Step 3: Cross multiply
    254,603.69x = 351,358.96 × 139,889.49
  4. Step 4: Simplify right side
    254,603.69x = 49,151,425,721.33
  5. Step 5: Solve for x
    x = 49,151,425,721.33/254,603.69
  6. Step 6: Final answer
    x = 193,050.72

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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.