Home / 331,529.72-497,298.05-265,390.28

Finding the Fourth Proportional to 331,529.72, 497,298.05 and 265,390.28

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Solution

The fourth proportional to 331,529.72, 497,298.05 and 265,390.28 is: 398,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,529.72 : 497,298.05 = 265,390.28 : x
  2. Step 2: Convert to fraction form
    331,529.72/497,298.05 = 265,390.28/x
  3. Step 3: Cross multiply
    331,529.72x = 497,298.05 × 265,390.28
  4. Step 4: Simplify right side
    331,529.72x = 131,978,068,732.95
  5. Step 5: Solve for x
    x = 131,978,068,732.95/331,529.72
  6. Step 6: Final answer
    x = 398,088.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.