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Finding the Fourth Proportional to 653,431.51, 980,283.35 and 204,134.23

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Solution

The fourth proportional to 653,431.51, 980,283.35 and 204,134.23 is: 306,243.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,431.51 : 980,283.35 = 204,134.23 : x
  2. Step 2: Convert to fraction form
    653,431.51/980,283.35 = 204,134.23/x
  3. Step 3: Cross multiply
    653,431.51x = 980,283.35 × 204,134.23
  4. Step 4: Simplify right side
    653,431.51x = 200,109,386,834.07
  5. Step 5: Solve for x
    x = 200,109,386,834.07/653,431.51
  6. Step 6: Final answer
    x = 306,243.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.