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Finding the Fourth Proportional to 371,032.08, 511,686.30 and 313,791.48

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Solution

The fourth proportional to 371,032.08, 511,686.30 and 313,791.48 is: 432,746.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,032.08 : 511,686.30 = 313,791.48 : x
  2. Step 2: Convert to fraction form
    371,032.08/511,686.30 = 313,791.48/x
  3. Step 3: Cross multiply
    371,032.08x = 511,686.30 × 313,791.48
  4. Step 4: Simplify right side
    371,032.08x = 160,562,801,372.72
  5. Step 5: Solve for x
    x = 160,562,801,372.72/371,032.08
  6. Step 6: Final answer
    x = 432,746.41

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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.