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Finding the Fourth Proportional to 219,025.00, 328,411.74 and 85,749.22

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Solution

The fourth proportional to 219,025.00, 328,411.74 and 85,749.22 is: 128,574.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,025.00 : 328,411.74 = 85,749.22 : x
  2. Step 2: Convert to fraction form
    219,025.00/328,411.74 = 85,749.22/x
  3. Step 3: Cross multiply
    219,025.00x = 328,411.74 × 85,749.22
  4. Step 4: Simplify right side
    219,025.00x = 28,161,048,901.78
  5. Step 5: Solve for x
    x = 28,161,048,901.78/219,025.00
  6. Step 6: Final answer
    x = 128,574.59

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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.