Home / 258,541.10-356,782.02-143,819.18

Finding the Fourth Proportional to 258,541.10, 356,782.02 and 143,819.18

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Solution

The fourth proportional to 258,541.10, 356,782.02 and 143,819.18 is: 198,467.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,541.10 : 356,782.02 = 143,819.18 : x
  2. Step 2: Convert to fraction form
    258,541.10/356,782.02 = 143,819.18/x
  3. Step 3: Cross multiply
    258,541.10x = 356,782.02 × 143,819.18
  4. Step 4: Simplify right side
    258,541.10x = 51,312,097,555.14
  5. Step 5: Solve for x
    x = 51,312,097,555.14/258,541.10
  6. Step 6: Final answer
    x = 198,467.86

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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.