Home / 286,822.80-430,428.60-186,739.20

Finding the Fourth Proportional to 286,822.80, 430,428.60 and 186,739.20

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Solution

The fourth proportional to 286,822.80, 430,428.60 and 186,739.20 is: 280,235.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,822.80 : 430,428.60 = 186,739.20 : x
  2. Step 2: Convert to fraction form
    286,822.80/430,428.60 = 186,739.20/x
  3. Step 3: Cross multiply
    286,822.80x = 430,428.60 × 186,739.20
  4. Step 4: Simplify right side
    286,822.80x = 80,377,892,421.12
  5. Step 5: Solve for x
    x = 80,377,892,421.12/286,822.80
  6. Step 6: Final answer
    x = 280,235.37

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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.