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Finding the Fourth Proportional to 427,622.56, 590,079.02 and 255,506.26

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Solution

The fourth proportional to 427,622.56, 590,079.02 and 255,506.26 is: 352,574.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,622.56 : 590,079.02 = 255,506.26 : x
  2. Step 2: Convert to fraction form
    427,622.56/590,079.02 = 255,506.26/x
  3. Step 3: Cross multiply
    427,622.56x = 590,079.02 × 255,506.26
  4. Step 4: Simplify right side
    427,622.56x = 150,768,883,504.67
  5. Step 5: Solve for x
    x = 150,768,883,504.67/427,622.56
  6. Step 6: Final answer
    x = 352,574.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.