Home / 287,777.04-397,126.87-158,727.52

Finding the Fourth Proportional to 287,777.04, 397,126.87 and 158,727.52

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Solution

The fourth proportional to 287,777.04, 397,126.87 and 158,727.52 is: 219,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,777.04 : 397,126.87 = 158,727.52 : x
  2. Step 2: Convert to fraction form
    287,777.04/397,126.87 = 158,727.52/x
  3. Step 3: Cross multiply
    287,777.04x = 397,126.87 × 158,727.52
  4. Step 4: Simplify right side
    287,777.04x = 63,034,963,200.46
  5. Step 5: Solve for x
    x = 63,034,963,200.46/287,777.04
  6. Step 6: Final answer
    x = 219,040.97

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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.