Home / 420,008.98-629,816.44-153,583.18

Finding the Fourth Proportional to 420,008.98, 629,816.44 and 153,583.18

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Solution

The fourth proportional to 420,008.98, 629,816.44 and 153,583.18 is: 230,302.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,008.98 : 629,816.44 = 153,583.18 : x
  2. Step 2: Convert to fraction form
    420,008.98/629,816.44 = 153,583.18/x
  3. Step 3: Cross multiply
    420,008.98x = 629,816.44 × 153,583.18
  4. Step 4: Simplify right side
    420,008.98x = 96,729,211,671.48
  5. Step 5: Solve for x
    x = 96,729,211,671.48/420,008.98
  6. Step 6: Final answer
    x = 230,302.72

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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.