Home / 420,118.74-629,936.19-183,348.18

Finding the Fourth Proportional to 420,118.74, 629,936.19 and 183,348.18

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Solution

The fourth proportional to 420,118.74, 629,936.19 and 183,348.18 is: 274,916.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,118.74 : 629,936.19 = 183,348.18 : x
  2. Step 2: Convert to fraction form
    420,118.74/629,936.19 = 183,348.18/x
  3. Step 3: Cross multiply
    420,118.74x = 629,936.19 × 183,348.18
  4. Step 4: Simplify right side
    420,118.74x = 115,497,653,952.63
  5. Step 5: Solve for x
    x = 115,497,653,952.63/420,118.74
  6. Step 6: Final answer
    x = 274,916.69

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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.