Home / 287,682.36-397,031.04-172,998.24

Finding the Fourth Proportional to 287,682.36, 397,031.04 and 172,998.24

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Solution

The fourth proportional to 287,682.36, 397,031.04 and 172,998.24 is: 238,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,682.36 : 397,031.04 = 172,998.24 : x
  2. Step 2: Convert to fraction form
    287,682.36/397,031.04 = 172,998.24/x
  3. Step 3: Cross multiply
    287,682.36x = 397,031.04 × 172,998.24
  4. Step 4: Simplify right side
    287,682.36x = 68,685,671,145.37
  5. Step 5: Solve for x
    x = 68,685,671,145.37/287,682.36
  6. Step 6: Final answer
    x = 238,755.24

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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.