Home / 320,219.82-480,312.38-162,444.14

Finding the Fourth Proportional to 320,219.82, 480,312.38 and 162,444.14

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Solution

The fourth proportional to 320,219.82, 480,312.38 and 162,444.14 is: 243,657.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,219.82 : 480,312.38 = 162,444.14 : x
  2. Step 2: Convert to fraction form
    320,219.82/480,312.38 = 162,444.14/x
  3. Step 3: Cross multiply
    320,219.82x = 480,312.38 × 162,444.14
  4. Step 4: Simplify right side
    320,219.82x = 78,023,931,500.45
  5. Step 5: Solve for x
    x = 78,023,931,500.45/320,219.82
  6. Step 6: Final answer
    x = 243,657.41

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1.5x scale

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.