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Finding the Fourth Proportional to 219,032.18, 328,550.88 and 85,975.10

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Solution

The fourth proportional to 219,032.18, 328,550.88 and 85,975.10 is: 128,963.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,032.18 : 328,550.88 = 85,975.10 : x
  2. Step 2: Convert to fraction form
    219,032.18/328,550.88 = 85,975.10/x
  3. Step 3: Cross multiply
    219,032.18x = 328,550.88 × 85,975.10
  4. Step 4: Simplify right side
    219,032.18x = 28,247,194,763.09
  5. Step 5: Solve for x
    x = 28,247,194,763.09/219,032.18
  6. Step 6: Final answer
    x = 128,963.67

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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.