Home / 400,824.02-553,137.38-219,535.90

Finding the Fourth Proportional to 400,824.02, 553,137.38 and 219,535.90

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Solution

The fourth proportional to 400,824.02, 553,137.38 and 219,535.90 is: 302,959.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,824.02 : 553,137.38 = 219,535.90 : x
  2. Step 2: Convert to fraction form
    400,824.02/553,137.38 = 219,535.90/x
  3. Step 3: Cross multiply
    400,824.02x = 553,137.38 × 219,535.90
  4. Step 4: Simplify right side
    400,824.02x = 121,433,512,541.94
  5. Step 5: Solve for x
    x = 121,433,512,541.94/400,824.02
  6. Step 6: Final answer
    x = 302,959.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.