Home / 420,019.40-629,865.30-183,200.60

Finding the Fourth Proportional to 420,019.40, 629,865.30 and 183,200.60

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Solution

The fourth proportional to 420,019.40, 629,865.30 and 183,200.60 is: 274,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,019.40 : 629,865.30 = 183,200.60 : x
  2. Step 2: Convert to fraction form
    420,019.40/629,865.30 = 183,200.60/x
  3. Step 3: Cross multiply
    420,019.40x = 629,865.30 × 183,200.60
  4. Step 4: Simplify right side
    420,019.40x = 115,391,700,879.18
  5. Step 5: Solve for x
    x = 115,391,700,879.18/420,019.40
  6. Step 6: Final answer
    x = 274,729.46

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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.