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Finding the Fourth Proportional to 210,313.60, 290,228.96 and 119,667.60

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Solution

The fourth proportional to 210,313.60, 290,228.96 and 119,667.60 is: 165,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,313.60 : 290,228.96 = 119,667.60 : x
  2. Step 2: Convert to fraction form
    210,313.60/290,228.96 = 119,667.60/x
  3. Step 3: Cross multiply
    210,313.60x = 290,228.96 × 119,667.60
  4. Step 4: Simplify right side
    210,313.60x = 34,731,003,093.70
  5. Step 5: Solve for x
    x = 34,731,003,093.70/210,313.60
  6. Step 6: Final answer
    x = 165,139.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.