Home / 369,133.20-553,699.80-102,912.39

Finding the Fourth Proportional to 369,133.20, 553,699.80 and 102,912.39

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Solution

The fourth proportional to 369,133.20, 553,699.80 and 102,912.39 is: 154,368.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,133.20 : 553,699.80 = 102,912.39 : x
  2. Step 2: Convert to fraction form
    369,133.20/553,699.80 = 102,912.39/x
  3. Step 3: Cross multiply
    369,133.20x = 553,699.80 × 102,912.39
  4. Step 4: Simplify right side
    369,133.20x = 56,982,569,760.52
  5. Step 5: Solve for x
    x = 56,982,569,760.52/369,133.20
  6. Step 6: Final answer
    x = 154,368.59

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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.