Home / 258,539.10-356,779.26-143,817.18

Finding the Fourth Proportional to 258,539.10, 356,779.26 and 143,817.18

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Solution

The fourth proportional to 258,539.10, 356,779.26 and 143,817.18 is: 198,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,539.10 : 356,779.26 = 143,817.18 : x
  2. Step 2: Convert to fraction form
    258,539.10/356,779.26 = 143,817.18/x
  3. Step 3: Cross multiply
    258,539.10x = 356,779.26 × 143,817.18
  4. Step 4: Simplify right side
    258,539.10x = 51,310,987,055.69
  5. Step 5: Solve for x
    x = 51,310,987,055.69/258,539.10
  6. Step 6: Final answer
    x = 198,465.10

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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.