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Finding the Fourth Proportional to 259,987.48, 358,785.09 and 152,559.29

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Solution

The fourth proportional to 259,987.48, 358,785.09 and 152,559.29 is: 210,533.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,987.48 : 358,785.09 = 152,559.29 : x
  2. Step 2: Convert to fraction form
    259,987.48/358,785.09 = 152,559.29/x
  3. Step 3: Cross multiply
    259,987.48x = 358,785.09 × 152,559.29
  4. Step 4: Simplify right side
    259,987.48x = 54,735,999,489.95
  5. Step 5: Solve for x
    x = 54,735,999,489.95/259,987.48
  6. Step 6: Final answer
    x = 210,533.21

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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.