Home / 287,959.32-397,124.82-180,540.36

Finding the Fourth Proportional to 287,959.32, 397,124.82 and 180,540.36

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Solution

The fourth proportional to 287,959.32, 397,124.82 and 180,540.36 is: 248,983.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,959.32 : 397,124.82 = 180,540.36 : x
  2. Step 2: Convert to fraction form
    287,959.32/397,124.82 = 180,540.36/x
  3. Step 3: Cross multiply
    287,959.32x = 397,124.82 × 180,540.36
  4. Step 4: Simplify right side
    287,959.32x = 71,697,057,967.74
  5. Step 5: Solve for x
    x = 71,697,057,967.74/287,959.32
  6. Step 6: Final answer
    x = 248,983.29

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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.