Home / 287,727.02-397,065-166,940.24

Finding the Fourth Proportional to 287,727.02, 397,065 and 166,940.24

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Solution

The fourth proportional to 287,727.02, 397,065 and 166,940.24 is: 230,378.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,727.02 : 397,065 = 166,940.24 : x
  2. Step 2: Convert to fraction form
    287,727.02/397,065 = 166,940.24/x
  3. Step 3: Cross multiply
    287,727.02x = 397,065 × 166,940.24
  4. Step 4: Simplify right side
    287,727.02x = 66,286,126,395.60
  5. Step 5: Solve for x
    x = 66,286,126,395.60/287,727.02
  6. Step 6: Final answer
    x = 230,378.52

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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.