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Finding the Fourth Proportional to 254,675.70, 351,458.76 and 139,953.48

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Solution

The fourth proportional to 254,675.70, 351,458.76 and 139,953.48 is: 193,139.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,675.70 : 351,458.76 = 139,953.48 : x
  2. Step 2: Convert to fraction form
    254,675.70/351,458.76 = 139,953.48/x
  3. Step 3: Cross multiply
    254,675.70x = 351,458.76 × 139,953.48
  4. Step 4: Simplify right side
    254,675.70x = 49,187,876,538.48
  5. Step 5: Solve for x
    x = 49,187,876,538.48/254,675.70
  6. Step 6: Final answer
    x = 193,139.26

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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.