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Finding the Fourth Proportional to 321,250.40, 481,875.60 and 227,938.40

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Solution

The fourth proportional to 321,250.40, 481,875.60 and 227,938.40 is: 341,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,250.40 : 481,875.60 = 227,938.40 : x
  2. Step 2: Convert to fraction form
    321,250.40/481,875.60 = 227,938.40/x
  3. Step 3: Cross multiply
    321,250.40x = 481,875.60 × 227,938.40
  4. Step 4: Simplify right side
    321,250.40x = 109,837,953,263.04
  5. Step 5: Solve for x
    x = 109,837,953,263.04/321,250.40
  6. Step 6: Final answer
    x = 341,907.60

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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.