Home / 435,229.76-652,783.20-139,703.36

Finding the Fourth Proportional to 435,229.76, 652,783.20 and 139,703.36

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Solution

The fourth proportional to 435,229.76, 652,783.20 and 139,703.36 is: 209,535.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,229.76 : 652,783.20 = 139,703.36 : x
  2. Step 2: Convert to fraction form
    435,229.76/652,783.20 = 139,703.36/x
  3. Step 3: Cross multiply
    435,229.76x = 652,783.20 × 139,703.36
  4. Step 4: Simplify right side
    435,229.76x = 91,196,006,391.55
  5. Step 5: Solve for x
    x = 91,196,006,391.55/435,229.76
  6. Step 6: Final answer
    x = 209,535.32

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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.