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Finding the Fourth Proportional to 230,985, 318,759.30 and 125,001

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Solution

The fourth proportional to 230,985, 318,759.30 and 125,001 is: 172,501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,985 : 318,759.30 = 125,001 : x
  2. Step 2: Convert to fraction form
    230,985/318,759.30 = 125,001/x
  3. Step 3: Cross multiply
    230,985x = 318,759.30 × 125,001
  4. Step 4: Simplify right side
    230,985x = 39,845,231,259.30
  5. Step 5: Solve for x
    x = 39,845,231,259.30/230,985
  6. Step 6: Final answer
    x = 172,501.38

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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.