Home / 279,401.48-385,562.64-158,540.24

Finding the Fourth Proportional to 279,401.48, 385,562.64 and 158,540.24

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Solution

The fourth proportional to 279,401.48, 385,562.64 and 158,540.24 is: 218,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,401.48 : 385,562.64 = 158,540.24 : x
  2. Step 2: Convert to fraction form
    279,401.48/385,562.64 = 158,540.24/x
  3. Step 3: Cross multiply
    279,401.48x = 385,562.64 × 158,540.24
  4. Step 4: Simplify right side
    279,401.48x = 61,127,193,480.63
  5. Step 5: Solve for x
    x = 61,127,193,480.63/279,401.48
  6. Step 6: Final answer
    x = 218,779.06

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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.