Home / 258,290.60-356,438.61-143,566.25

Finding the Fourth Proportional to 258,290.60, 356,438.61 and 143,566.25

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Solution

The fourth proportional to 258,290.60, 356,438.61 and 143,566.25 is: 198,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,290.60 : 356,438.61 = 143,566.25 : x
  2. Step 2: Convert to fraction form
    258,290.60/356,438.61 = 143,566.25/x
  3. Step 3: Cross multiply
    258,290.60x = 356,438.61 × 143,566.25
  4. Step 4: Simplify right side
    258,290.60x = 51,172,552,810.72
  5. Step 5: Solve for x
    x = 51,172,552,810.72/258,290.60
  6. Step 6: Final answer
    x = 198,120.08

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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.