Home / 328,920.36-493,577.34-141,931.86

Finding the Fourth Proportional to 328,920.36, 493,577.34 and 141,931.86

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Solution

The fourth proportional to 328,920.36, 493,577.34 and 141,931.86 is: 212,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,920.36 : 493,577.34 = 141,931.86 : x
  2. Step 2: Convert to fraction form
    328,920.36/493,577.34 = 141,931.86/x
  3. Step 3: Cross multiply
    328,920.36x = 493,577.34 × 141,931.86
  4. Step 4: Simplify right side
    328,920.36x = 70,054,349,920.05
  5. Step 5: Solve for x
    x = 70,054,349,920.05/328,920.36
  6. Step 6: Final answer
    x = 212,982.71

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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.