Home / 259,805.89-358,400.04-157,804.21

Finding the Fourth Proportional to 259,805.89, 358,400.04 and 157,804.21

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Solution

The fourth proportional to 259,805.89, 358,400.04 and 157,804.21 is: 217,689.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,805.89 : 358,400.04 = 157,804.21 : x
  2. Step 2: Convert to fraction form
    259,805.89/358,400.04 = 157,804.21/x
  3. Step 3: Cross multiply
    259,805.89x = 358,400.04 × 157,804.21
  4. Step 4: Simplify right side
    259,805.89x = 56,557,035,176.17
  5. Step 5: Solve for x
    x = 56,557,035,176.17/259,805.89
  6. Step 6: Final answer
    x = 217,689.58

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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.