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Finding the Fourth Proportional to 210,012.60, 289,806.89 and 119,356.59

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Solution

The fourth proportional to 210,012.60, 289,806.89 and 119,356.59 is: 164,706.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,012.60 : 289,806.89 = 119,356.59 : x
  2. Step 2: Convert to fraction form
    210,012.60/289,806.89 = 119,356.59/x
  3. Step 3: Cross multiply
    210,012.60x = 289,806.89 × 119,356.59
  4. Step 4: Simplify right side
    210,012.60x = 34,590,362,148.91
  5. Step 5: Solve for x
    x = 34,590,362,148.91/210,012.60
  6. Step 6: Final answer
    x = 164,706.13

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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.