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Finding the Fourth Proportional to 259,031.69, 357,326.89 and 178,319.08

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Solution

The fourth proportional to 259,031.69, 357,326.89 and 178,319.08 is: 245,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,031.69 : 357,326.89 = 178,319.08 : x
  2. Step 2: Convert to fraction form
    259,031.69/357,326.89 = 178,319.08/x
  3. Step 3: Cross multiply
    259,031.69x = 357,326.89 × 178,319.08
  4. Step 4: Simplify right side
    259,031.69x = 63,718,202,284.06
  5. Step 5: Solve for x
    x = 63,718,202,284.06/259,031.69
  6. Step 6: Final answer
    x = 245,986.13

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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.