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Finding the Fourth Proportional to 230,955, 318,718.90 and 124,971

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Solution

The fourth proportional to 230,955, 318,718.90 and 124,971 is: 172,460.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,955 : 318,718.90 = 124,971 : x
  2. Step 2: Convert to fraction form
    230,955/318,718.90 = 124,971/x
  3. Step 3: Cross multiply
    230,955x = 318,718.90 × 124,971
  4. Step 4: Simplify right side
    230,955x = 39,830,619,651.90
  5. Step 5: Solve for x
    x = 39,830,619,651.90/230,955
  6. Step 6: Final answer
    x = 172,460.52

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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.