Home / 317,442.72-438,076.29-174,216.09

Finding the Fourth Proportional to 317,442.72, 438,076.29 and 174,216.09

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Solution

The fourth proportional to 317,442.72, 438,076.29 and 174,216.09 is: 240,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,442.72 : 438,076.29 = 174,216.09 : x
  2. Step 2: Convert to fraction form
    317,442.72/438,076.29 = 174,216.09/x
  3. Step 3: Cross multiply
    317,442.72x = 438,076.29 × 174,216.09
  4. Step 4: Simplify right side
    317,442.72x = 76,319,938,365.51
  5. Step 5: Solve for x
    x = 76,319,938,365.51/317,442.72
  6. Step 6: Final answer
    x = 240,421.13

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1.5x scale

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.