Home / 290,060.46-399,537.63-205,031.34

Finding the Fourth Proportional to 290,060.46, 399,537.63 and 205,031.34

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Solution

The fourth proportional to 290,060.46, 399,537.63 and 205,031.34 is: 282,416.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,060.46 : 399,537.63 = 205,031.34 : x
  2. Step 2: Convert to fraction form
    290,060.46/399,537.63 = 205,031.34/x
  3. Step 3: Cross multiply
    290,060.46x = 399,537.63 × 205,031.34
  4. Step 4: Simplify right side
    290,060.46x = 81,917,735,659.32
  5. Step 5: Solve for x
    x = 81,917,735,659.32/290,060.46
  6. Step 6: Final answer
    x = 282,416.07

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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.