Home / 287,891.04-397,290.24-160,563.36

Finding the Fourth Proportional to 287,891.04, 397,290.24 and 160,563.36

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Solution

The fourth proportional to 287,891.04, 397,290.24 and 160,563.36 is: 221,577.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,891.04 : 397,290.24 = 160,563.36 : x
  2. Step 2: Convert to fraction form
    287,891.04/397,290.24 = 160,563.36/x
  3. Step 3: Cross multiply
    287,891.04x = 397,290.24 × 160,563.36
  4. Step 4: Simplify right side
    287,891.04x = 63,790,255,829.61
  5. Step 5: Solve for x
    x = 63,790,255,829.61/287,891.04
  6. Step 6: Final answer
    x = 221,577.77

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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.