Home / 287,976.64-397,403.04-160,666.24

Finding the Fourth Proportional to 287,976.64, 397,403.04 and 160,666.24

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Solution

The fourth proportional to 287,976.64, 397,403.04 and 160,666.24 is: 221,716.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,976.64 : 397,403.04 = 160,666.24 : x
  2. Step 2: Convert to fraction form
    287,976.64/397,403.04 = 160,666.24/x
  3. Step 3: Cross multiply
    287,976.64x = 397,403.04 × 160,666.24
  4. Step 4: Simplify right side
    287,976.64x = 63,849,252,201.37
  5. Step 5: Solve for x
    x = 63,849,252,201.37/287,976.64
  6. Step 6: Final answer
    x = 221,716.78

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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.