Home / 368,932.60-553,658.10-158,721.40

Finding the Fourth Proportional to 368,932.60, 553,658.10 and 158,721.40

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Solution

The fourth proportional to 368,932.60, 553,658.10 and 158,721.40 is: 238,193.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,932.60 : 553,658.10 = 158,721.40 : x
  2. Step 2: Convert to fraction form
    368,932.60/553,658.10 = 158,721.40/x
  3. Step 3: Cross multiply
    368,932.60x = 553,658.10 × 158,721.40
  4. Step 4: Simplify right side
    368,932.60x = 87,877,388,753.34
  5. Step 5: Solve for x
    x = 87,877,388,753.34/368,932.60
  6. Step 6: Final answer
    x = 238,193.61

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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.