Home / 380,048.93-523,828.33-288,137.77

Finding the Fourth Proportional to 380,048.93, 523,828.33 and 288,137.77

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Solution

The fourth proportional to 380,048.93, 523,828.33 and 288,137.77 is: 397,145.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,048.93 : 523,828.33 = 288,137.77 : x
  2. Step 2: Convert to fraction form
    380,048.93/523,828.33 = 288,137.77/x
  3. Step 3: Cross multiply
    380,048.93x = 523,828.33 × 288,137.77
  4. Step 4: Simplify right side
    380,048.93x = 150,934,726,869.02
  5. Step 5: Solve for x
    x = 150,934,726,869.02/380,048.93
  6. Step 6: Final answer
    x = 397,145.51

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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.