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Finding the Fourth Proportional to 290,222.10, 435,362.31 and 107,901.63

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Solution

The fourth proportional to 290,222.10, 435,362.31 and 107,901.63 is: 161,863.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,222.10 : 435,362.31 = 107,901.63 : x
  2. Step 2: Convert to fraction form
    290,222.10/435,362.31 = 107,901.63/x
  3. Step 3: Cross multiply
    290,222.10x = 435,362.31 × 107,901.63
  4. Step 4: Simplify right side
    290,222.10x = 46,976,302,889.57
  5. Step 5: Solve for x
    x = 46,976,302,889.57/290,222.10
  6. Step 6: Final answer
    x = 161,863.29

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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.