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Finding the Fourth Proportional to 347,264.70, 520,077.85 and 214,554.30

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Solution

The fourth proportional to 347,264.70, 520,077.85 and 214,554.30 is: 321,325.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,264.70 : 520,077.85 = 214,554.30 : x
  2. Step 2: Convert to fraction form
    347,264.70/520,077.85 = 214,554.30/x
  3. Step 3: Cross multiply
    347,264.70x = 520,077.85 × 214,554.30
  4. Step 4: Simplify right side
    347,264.70x = 111,584,939,052.26
  5. Step 5: Solve for x
    x = 111,584,939,052.26/347,264.70
  6. Step 6: Final answer
    x = 321,325.31

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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.