Home / 401,490.08-554,005.26-229,419.20

Finding the Fourth Proportional to 401,490.08, 554,005.26 and 229,419.20

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Solution

The fourth proportional to 401,490.08, 554,005.26 and 229,419.20 is: 316,569.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,490.08 : 554,005.26 = 229,419.20 : x
  2. Step 2: Convert to fraction form
    401,490.08/554,005.26 = 229,419.20/x
  3. Step 3: Cross multiply
    401,490.08x = 554,005.26 × 229,419.20
  4. Step 4: Simplify right side
    401,490.08x = 127,099,443,544.99
  5. Step 5: Solve for x
    x = 127,099,443,544.99/401,490.08
  6. Step 6: Final answer
    x = 316,569.32

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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.