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Finding the Fourth Proportional to 365,595.12, 503,399.52 and 320,018.04

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Solution

The fourth proportional to 365,595.12, 503,399.52 and 320,018.04 is: 440,642.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,595.12 : 503,399.52 = 320,018.04 : x
  2. Step 2: Convert to fraction form
    365,595.12/503,399.52 = 320,018.04/x
  3. Step 3: Cross multiply
    365,595.12x = 503,399.52 × 320,018.04
  4. Step 4: Simplify right side
    365,595.12x = 161,096,927,727.34
  5. Step 5: Solve for x
    x = 161,096,927,727.34/365,595.12
  6. Step 6: Final answer
    x = 440,642.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.