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Finding the Fourth Proportional to 338,571.77, 507,852.59 and 82,405.22

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Solution

The fourth proportional to 338,571.77, 507,852.59 and 82,405.22 is: 123,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,571.77 : 507,852.59 = 82,405.22 : x
  2. Step 2: Convert to fraction form
    338,571.77/507,852.59 = 82,405.22/x
  3. Step 3: Cross multiply
    338,571.77x = 507,852.59 × 82,405.22
  4. Step 4: Simplify right side
    338,571.77x = 41,849,704,612.53
  5. Step 5: Solve for x
    x = 41,849,704,612.53/338,571.77
  6. Step 6: Final answer
    x = 123,606.60

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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.