Home / 211,201.86-316,804.05-53,430.24

Finding the Fourth Proportional to 211,201.86, 316,804.05 and 53,430.24

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Solution

The fourth proportional to 211,201.86, 316,804.05 and 53,430.24 is: 80,145.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,201.86 : 316,804.05 = 53,430.24 : x
  2. Step 2: Convert to fraction form
    211,201.86/316,804.05 = 53,430.24/x
  3. Step 3: Cross multiply
    211,201.86x = 316,804.05 × 53,430.24
  4. Step 4: Simplify right side
    211,201.86x = 16,926,916,424.47
  5. Step 5: Solve for x
    x = 16,926,916,424.47/211,201.86
  6. Step 6: Final answer
    x = 80,145.68

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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.