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Finding the Fourth Proportional to 288,370.53, 395,061.03 and 277,588.91

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Solution

The fourth proportional to 288,370.53, 395,061.03 and 277,588.91 is: 380,290.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,370.53 : 395,061.03 = 277,588.91 : x
  2. Step 2: Convert to fraction form
    288,370.53/395,061.03 = 277,588.91/x
  3. Step 3: Cross multiply
    288,370.53x = 395,061.03 × 277,588.91
  4. Step 4: Simplify right side
    288,370.53x = 109,664,561,688.83
  5. Step 5: Solve for x
    x = 109,664,561,688.83/288,370.53
  6. Step 6: Final answer
    x = 380,290.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.