Home / 320,721.96-480,826.98-152,157.72

Finding the Fourth Proportional to 320,721.96, 480,826.98 and 152,157.72

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Solution

The fourth proportional to 320,721.96, 480,826.98 and 152,157.72 is: 228,115.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,721.96 : 480,826.98 = 152,157.72 : x
  2. Step 2: Convert to fraction form
    320,721.96/480,826.98 = 152,157.72/x
  3. Step 3: Cross multiply
    320,721.96x = 480,826.98 × 152,157.72
  4. Step 4: Simplify right side
    320,721.96x = 73,161,536,991.29
  5. Step 5: Solve for x
    x = 73,161,536,991.29/320,721.96
  6. Step 6: Final answer
    x = 228,115.15

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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.