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Finding the Fourth Proportional to 344,000.70, 514,980.45 and 255,645.90

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Solution

The fourth proportional to 344,000.70, 514,980.45 and 255,645.90 is: 382,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,000.70 : 514,980.45 = 255,645.90 : x
  2. Step 2: Convert to fraction form
    344,000.70/514,980.45 = 255,645.90/x
  3. Step 3: Cross multiply
    344,000.70x = 514,980.45 × 255,645.90
  4. Step 4: Simplify right side
    344,000.70x = 131,652,640,622.66
  5. Step 5: Solve for x
    x = 131,652,640,622.66/344,000.70
  6. Step 6: Final answer
    x = 382,710.39

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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.