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Finding the Fourth Proportional to 215,026.30, 322,575.90 and 65,265.40

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Solution

The fourth proportional to 215,026.30, 322,575.90 and 65,265.40 is: 97,909.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,026.30 : 322,575.90 = 65,265.40 : x
  2. Step 2: Convert to fraction form
    215,026.30/322,575.90 = 65,265.40/x
  3. Step 3: Cross multiply
    215,026.30x = 322,575.90 × 65,265.40
  4. Step 4: Simplify right side
    215,026.30x = 21,053,045,143.86
  5. Step 5: Solve for x
    x = 21,053,045,143.86/215,026.30
  6. Step 6: Final answer
    x = 97,909.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.