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Finding the Fourth Proportional to 345,071.88, 476,103.54 and 207,215.24

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Solution

The fourth proportional to 345,071.88, 476,103.54 and 207,215.24 is: 285,899.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,071.88 : 476,103.54 = 207,215.24 : x
  2. Step 2: Convert to fraction form
    345,071.88/476,103.54 = 207,215.24/x
  3. Step 3: Cross multiply
    345,071.88x = 476,103.54 × 207,215.24
  4. Step 4: Simplify right side
    345,071.88x = 98,655,909,305.95
  5. Step 5: Solve for x
    x = 98,655,909,305.95/345,071.88
  6. Step 6: Final answer
    x = 285,899.59

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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.