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Finding the Fourth Proportional to 338,472.40, 507,708.60 and 180,619.60

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Solution

The fourth proportional to 338,472.40, 507,708.60 and 180,619.60 is: 270,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,472.40 : 507,708.60 = 180,619.60 : x
  2. Step 2: Convert to fraction form
    338,472.40/507,708.60 = 180,619.60/x
  3. Step 3: Cross multiply
    338,472.40x = 507,708.60 × 180,619.60
  4. Step 4: Simplify right side
    338,472.40x = 91,702,124,248.56
  5. Step 5: Solve for x
    x = 91,702,124,248.56/338,472.40
  6. Step 6: Final answer
    x = 270,929.40

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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.