Home / 401,172.45-553,622.36-219,880.41

Finding the Fourth Proportional to 401,172.45, 553,622.36 and 219,880.41

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Solution

The fourth proportional to 401,172.45, 553,622.36 and 219,880.41 is: 303,437.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,172.45 : 553,622.36 = 219,880.41 : x
  2. Step 2: Convert to fraction form
    401,172.45/553,622.36 = 219,880.41/x
  3. Step 3: Cross multiply
    401,172.45x = 553,622.36 × 219,880.41
  4. Step 4: Simplify right side
    401,172.45x = 121,730,710,402.57
  5. Step 5: Solve for x
    x = 121,730,710,402.57/401,172.45
  6. Step 6: Final answer
    x = 303,437.36

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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.