Home / 258,208.14-356,319.48-143,486.40

Finding the Fourth Proportional to 258,208.14, 356,319.48 and 143,486.40

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Solution

The fourth proportional to 258,208.14, 356,319.48 and 143,486.40 is: 198,006.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,208.14 : 356,319.48 = 143,486.40 : x
  2. Step 2: Convert to fraction form
    258,208.14/356,319.48 = 143,486.40/x
  3. Step 3: Cross multiply
    258,208.14x = 356,319.48 × 143,486.40
  4. Step 4: Simplify right side
    258,208.14x = 51,126,999,435.07
  5. Step 5: Solve for x
    x = 51,126,999,435.07/258,208.14
  6. Step 6: Final answer
    x = 198,006.92

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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.