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Finding the Fourth Proportional to 253,347.10, 349,613.60 and 138,625.27

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Solution

The fourth proportional to 253,347.10, 349,613.60 and 138,625.27 is: 191,299.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,347.10 : 349,613.60 = 138,625.27 : x
  2. Step 2: Convert to fraction form
    253,347.10/349,613.60 = 138,625.27/x
  3. Step 3: Cross multiply
    253,347.10x = 349,613.60 × 138,625.27
  4. Step 4: Simplify right side
    253,347.10x = 48,465,278,128.51
  5. Step 5: Solve for x
    x = 48,465,278,128.51/253,347.10
  6. Step 6: Final answer
    x = 191,299.91

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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.