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Finding the Fourth Proportional to 355,514.51, 490,317.73 and 253,507.37

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Solution

The fourth proportional to 355,514.51, 490,317.73 and 253,507.37 is: 349,631.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,514.51 : 490,317.73 = 253,507.37 : x
  2. Step 2: Convert to fraction form
    355,514.51/490,317.73 = 253,507.37/x
  3. Step 3: Cross multiply
    355,514.51x = 490,317.73 × 253,507.37
  4. Step 4: Simplify right side
    355,514.51x = 124,299,155,745.08
  5. Step 5: Solve for x
    x = 124,299,155,745.08/355,514.51
  6. Step 6: Final answer
    x = 349,631.74

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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.