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Finding the Fourth Proportional to 372,009.03, 557,929.49 and 105,763.71

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Solution

The fourth proportional to 372,009.03, 557,929.49 and 105,763.71 is: 158,621.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,009.03 : 557,929.49 = 105,763.71 : x
  2. Step 2: Convert to fraction form
    372,009.03/557,929.49 = 105,763.71/x
  3. Step 3: Cross multiply
    372,009.03x = 557,929.49 × 105,763.71
  4. Step 4: Simplify right side
    372,009.03x = 59,008,692,251.99
  5. Step 5: Solve for x
    x = 59,008,692,251.99/372,009.03
  6. Step 6: Final answer
    x = 158,621.67

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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.