Home / 320,278.08-480,550.56-140,492.64

Finding the Fourth Proportional to 320,278.08, 480,550.56 and 140,492.64

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Solution

The fourth proportional to 320,278.08, 480,550.56 and 140,492.64 is: 210,797.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,278.08 : 480,550.56 = 140,492.64 : x
  2. Step 2: Convert to fraction form
    320,278.08/480,550.56 = 140,492.64/x
  3. Step 3: Cross multiply
    320,278.08x = 480,550.56 × 140,492.64
  4. Step 4: Simplify right side
    320,278.08x = 67,513,818,103.10
  5. Step 5: Solve for x
    x = 67,513,818,103.10/320,278.08
  6. Step 6: Final answer
    x = 210,797.50

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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.