Home / 319,913.16-441,478.64-176,672.56

Finding the Fourth Proportional to 319,913.16, 441,478.64 and 176,672.56

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Solution

The fourth proportional to 319,913.16, 441,478.64 and 176,672.56 is: 243,807.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,913.16 : 441,478.64 = 176,672.56 : x
  2. Step 2: Convert to fraction form
    319,913.16/441,478.64 = 176,672.56/x
  3. Step 3: Cross multiply
    319,913.16x = 441,478.64 × 176,672.56
  4. Step 4: Simplify right side
    319,913.16x = 77,997,161,514.12
  5. Step 5: Solve for x
    x = 77,997,161,514.12/319,913.16
  6. Step 6: Final answer
    x = 243,807.29

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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.