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Finding the Fourth Proportional to 338,063, 507,601.86 and 321,812.16

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Solution

The fourth proportional to 338,063, 507,601.86 and 321,812.16 is: 483,201.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,063 : 507,601.86 = 321,812.16 : x
  2. Step 2: Convert to fraction form
    338,063/507,601.86 = 321,812.16/x
  3. Step 3: Cross multiply
    338,063x = 507,601.86 × 321,812.16
  4. Step 4: Simplify right side
    338,063x = 163,352,450,986.62
  5. Step 5: Solve for x
    x = 163,352,450,986.62/338,063
  6. Step 6: Final answer
    x = 483,201.21

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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.