Home / 286,945.92-430,420.96-99,956.80

Finding the Fourth Proportional to 286,945.92, 430,420.96 and 99,956.80

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Solution

The fourth proportional to 286,945.92, 430,420.96 and 99,956.80 is: 149,935.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,945.92 : 430,420.96 = 99,956.80 : x
  2. Step 2: Convert to fraction form
    286,945.92/430,420.96 = 99,956.80/x
  3. Step 3: Cross multiply
    286,945.92x = 430,420.96 × 99,956.80
  4. Step 4: Simplify right side
    286,945.92x = 43,023,501,814.53
  5. Step 5: Solve for x
    x = 43,023,501,814.53/286,945.92
  6. Step 6: Final answer
    x = 149,935.92

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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.