Home / 353,376.48-487,840.20-272,622.72

Finding the Fourth Proportional to 353,376.48, 487,840.20 and 272,622.72

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Solution

The fourth proportional to 353,376.48, 487,840.20 and 272,622.72 is: 376,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,376.48 : 487,840.20 = 272,622.72 : x
  2. Step 2: Convert to fraction form
    353,376.48/487,840.20 = 272,622.72/x
  3. Step 3: Cross multiply
    353,376.48x = 487,840.20 × 272,622.72
  4. Step 4: Simplify right side
    353,376.48x = 132,996,322,249.34
  5. Step 5: Solve for x
    x = 132,996,322,249.34/353,376.48
  6. Step 6: Final answer
    x = 376,358.73

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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.