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Finding the Fourth Proportional to 209,754, 289,569.96 and 163,083.38

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Solution

The fourth proportional to 209,754, 289,569.96 and 163,083.38 is: 225,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,754 : 289,569.96 = 163,083.38 : x
  2. Step 2: Convert to fraction form
    209,754/289,569.96 = 163,083.38/x
  3. Step 3: Cross multiply
    209,754x = 289,569.96 × 163,083.38
  4. Step 4: Simplify right side
    209,754x = 47,224,047,823.26
  5. Step 5: Solve for x
    x = 47,224,047,823.26/209,754
  6. Step 6: Final answer
    x = 225,140.15

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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.