Home / 320,123.10-480,184.65-160,690.80

Finding the Fourth Proportional to 320,123.10, 480,184.65 and 160,690.80

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Solution

The fourth proportional to 320,123.10, 480,184.65 and 160,690.80 is: 241,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,123.10 : 480,184.65 = 160,690.80 : x
  2. Step 2: Convert to fraction form
    320,123.10/480,184.65 = 160,690.80/x
  3. Step 3: Cross multiply
    320,123.10x = 480,184.65 × 160,690.80
  4. Step 4: Simplify right side
    320,123.10x = 77,161,255,556.22
  5. Step 5: Solve for x
    x = 77,161,255,556.22/320,123.10
  6. Step 6: Final answer
    x = 241,036.20

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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.