Home / 321,899.40-482,849.10-238,955.40

Finding the Fourth Proportional to 321,899.40, 482,849.10 and 238,955.40

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Solution

The fourth proportional to 321,899.40, 482,849.10 and 238,955.40 is: 358,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,899.40 : 482,849.10 = 238,955.40 : x
  2. Step 2: Convert to fraction form
    321,899.40/482,849.10 = 238,955.40/x
  3. Step 3: Cross multiply
    321,899.40x = 482,849.10 × 238,955.40
  4. Step 4: Simplify right side
    321,899.40x = 115,379,399,830.14
  5. Step 5: Solve for x
    x = 115,379,399,830.14/321,899.40
  6. Step 6: Final answer
    x = 358,433.10

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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.