Home / 290,623.40-436,280.70-164,364.20

Finding the Fourth Proportional to 290,623.40, 436,280.70 and 164,364.20

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Solution

The fourth proportional to 290,623.40, 436,280.70 and 164,364.20 is: 246,741.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,623.40 : 436,280.70 = 164,364.20 : x
  2. Step 2: Convert to fraction form
    290,623.40/436,280.70 = 164,364.20/x
  3. Step 3: Cross multiply
    290,623.40x = 436,280.70 × 164,364.20
  4. Step 4: Simplify right side
    290,623.40x = 71,708,928,230.94
  5. Step 5: Solve for x
    x = 71,708,928,230.94/290,623.40
  6. Step 6: Final answer
    x = 246,741.76

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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.