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Finding the Fourth Proportional to 259,653.19, 358,322.48 and 140,421.19

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Solution

The fourth proportional to 259,653.19, 358,322.48 and 140,421.19 is: 193,781.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,653.19 : 358,322.48 = 140,421.19 : x
  2. Step 2: Convert to fraction form
    259,653.19/358,322.48 = 140,421.19/x
  3. Step 3: Cross multiply
    259,653.19x = 358,322.48 × 140,421.19
  4. Step 4: Simplify right side
    259,653.19x = 50,316,067,974.02
  5. Step 5: Solve for x
    x = 50,316,067,974.02/259,653.19
  6. Step 6: Final answer
    x = 193,781.82

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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.