Home / 369,105.40-553,629.30-144,422.20

Finding the Fourth Proportional to 369,105.40, 553,629.30 and 144,422.20

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Solution

The fourth proportional to 369,105.40, 553,629.30 and 144,422.20 is: 216,622.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,105.40 : 553,629.30 = 144,422.20 : x
  2. Step 2: Convert to fraction form
    369,105.40/553,629.30 = 144,422.20/x
  3. Step 3: Cross multiply
    369,105.40x = 553,629.30 × 144,422.20
  4. Step 4: Simplify right side
    369,105.40x = 79,956,361,490.46
  5. Step 5: Solve for x
    x = 79,956,361,490.46/369,105.40
  6. Step 6: Final answer
    x = 216,622.03

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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.