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Finding the Fourth Proportional to 210,134.96, 289,984.87 and 119,490.93

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Solution

The fourth proportional to 210,134.96, 289,984.87 and 119,490.93 is: 164,896.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,134.96 : 289,984.87 = 119,490.93 : x
  2. Step 2: Convert to fraction form
    210,134.96/289,984.87 = 119,490.93/x
  3. Step 3: Cross multiply
    210,134.96x = 289,984.87 × 119,490.93
  4. Step 4: Simplify right side
    210,134.96x = 34,650,563,039.04
  5. Step 5: Solve for x
    x = 34,650,563,039.04/210,134.96
  6. Step 6: Final answer
    x = 164,896.71

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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.