Home / 369,112.90-553,640.55-144,429.70

Finding the Fourth Proportional to 369,112.90, 553,640.55 and 144,429.70

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Solution

The fourth proportional to 369,112.90, 553,640.55 and 144,429.70 is: 216,633.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,112.90 : 553,640.55 = 144,429.70 : x
  2. Step 2: Convert to fraction form
    369,112.90/553,640.55 = 144,429.70/x
  3. Step 3: Cross multiply
    369,112.90x = 553,640.55 × 144,429.70
  4. Step 4: Simplify right side
    369,112.90x = 79,962,138,544.34
  5. Step 5: Solve for x
    x = 79,962,138,544.34/369,112.90
  6. Step 6: Final answer
    x = 216,633.28

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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.