Home / 238,579.88-357,810.77-142,543.31

Finding the Fourth Proportional to 238,579.88, 357,810.77 and 142,543.31

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Solution

The fourth proportional to 238,579.88, 357,810.77 and 142,543.31 is: 213,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,579.88 : 357,810.77 = 142,543.31 : x
  2. Step 2: Convert to fraction form
    238,579.88/357,810.77 = 142,543.31/x
  3. Step 3: Cross multiply
    238,579.88x = 357,810.77 × 142,543.31
  4. Step 4: Simplify right side
    238,579.88x = 51,003,529,007.68
  5. Step 5: Solve for x
    x = 51,003,529,007.68/238,579.88
  6. Step 6: Final answer
    x = 213,779.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.