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Finding the Fourth Proportional to 210,010.50, 289,806.39 and 119,378.39

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Solution

The fourth proportional to 210,010.50, 289,806.39 and 119,378.39 is: 164,737.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,010.50 : 289,806.39 = 119,378.39 : x
  2. Step 2: Convert to fraction form
    210,010.50/289,806.39 = 119,378.39/x
  3. Step 3: Cross multiply
    210,010.50x = 289,806.39 × 119,378.39
  4. Step 4: Simplify right side
    210,010.50x = 34,596,618,800.88
  5. Step 5: Solve for x
    x = 34,596,618,800.88/210,010.50
  6. Step 6: Final answer
    x = 164,737.57

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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.