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Finding the Fourth Proportional to 325,145.40, 455,514.60 and 325,145.40

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Solution

The fourth proportional to 325,145.40, 455,514.60 and 325,145.40 is: 455,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,145.40 : 455,514.60 = 325,145.40 : x
  2. Step 2: Convert to fraction form
    325,145.40/455,514.60 = 325,145.40/x
  3. Step 3: Cross multiply
    325,145.40x = 455,514.60 × 325,145.40
  4. Step 4: Simplify right side
    325,145.40x = 148,108,476,822.84
  5. Step 5: Solve for x
    x = 148,108,476,822.84/325,145.40
  6. Step 6: Final answer
    x = 455,514.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.