Home / 317,921.78-438,731.70-174,681.47

Finding the Fourth Proportional to 317,921.78, 438,731.70 and 174,681.47

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Solution

The fourth proportional to 317,921.78, 438,731.70 and 174,681.47 is: 241,060.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,921.78 : 438,731.70 = 174,681.47 : x
  2. Step 2: Convert to fraction form
    317,921.78/438,731.70 = 174,681.47/x
  3. Step 3: Cross multiply
    317,921.78x = 438,731.70 × 174,681.47
  4. Step 4: Simplify right side
    317,921.78x = 76,638,298,291.60
  5. Step 5: Solve for x
    x = 76,638,298,291.60/317,921.78
  6. Step 6: Final answer
    x = 241,060.23

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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.