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Finding the Fourth Proportional to 202,903.78, 304,352.59 and 69,785.19

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Solution

The fourth proportional to 202,903.78, 304,352.59 and 69,785.19 is: 104,676.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,903.78 : 304,352.59 = 69,785.19 : x
  2. Step 2: Convert to fraction form
    202,903.78/304,352.59 = 69,785.19/x
  3. Step 3: Cross multiply
    202,903.78x = 304,352.59 × 69,785.19
  4. Step 4: Simplify right side
    202,903.78x = 21,239,302,004.36
  5. Step 5: Solve for x
    x = 21,239,302,004.36/202,903.78
  6. Step 6: Final answer
    x = 104,676.72

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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.