Home / 401,580.18-554,176.08-231,810.66

Finding the Fourth Proportional to 401,580.18, 554,176.08 and 231,810.66

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Solution

The fourth proportional to 401,580.18, 554,176.08 and 231,810.66 is: 319,896.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,580.18 : 554,176.08 = 231,810.66 : x
  2. Step 2: Convert to fraction form
    401,580.18/554,176.08 = 231,810.66/x
  3. Step 3: Cross multiply
    401,580.18x = 554,176.08 × 231,810.66
  4. Step 4: Simplify right side
    401,580.18x = 128,463,922,861.01
  5. Step 5: Solve for x
    x = 128,463,922,861.01/401,580.18
  6. Step 6: Final answer
    x = 319,896.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.