Home / 320,312.50-480,758.53-170,679.18

Finding the Fourth Proportional to 320,312.50, 480,758.53 and 170,679.18

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Solution

The fourth proportional to 320,312.50, 480,758.53 and 170,679.18 is: 256,173.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,312.50 : 480,758.53 = 170,679.18 : x
  2. Step 2: Convert to fraction form
    320,312.50/480,758.53 = 170,679.18/x
  3. Step 3: Cross multiply
    320,312.50x = 480,758.53 × 170,679.18
  4. Step 4: Simplify right side
    320,312.50x = 82,055,471,678.41
  5. Step 5: Solve for x
    x = 82,055,471,678.41/320,312.50
  6. Step 6: Final answer
    x = 256,173.18

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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.