Home / 290,102.08-434,738.40-165,184.96

Finding the Fourth Proportional to 290,102.08, 434,738.40 and 165,184.96

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Solution

The fourth proportional to 290,102.08, 434,738.40 and 165,184.96 is: 247,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,102.08 : 434,738.40 = 165,184.96 : x
  2. Step 2: Convert to fraction form
    290,102.08/434,738.40 = 165,184.96/x
  3. Step 3: Cross multiply
    290,102.08x = 434,738.40 × 165,184.96
  4. Step 4: Simplify right side
    290,102.08x = 71,812,245,214.46
  5. Step 5: Solve for x
    x = 71,812,245,214.46/290,102.08
  6. Step 6: Final answer
    x = 247,541.30

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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.