Home / 240,603.19-331,995.21-138,608.66

Finding the Fourth Proportional to 240,603.19, 331,995.21 and 138,608.66

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Solution

The fourth proportional to 240,603.19, 331,995.21 and 138,608.66 is: 191,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,603.19 : 331,995.21 = 138,608.66 : x
  2. Step 2: Convert to fraction form
    240,603.19/331,995.21 = 138,608.66/x
  3. Step 3: Cross multiply
    240,603.19x = 331,995.21 × 138,608.66
  4. Step 4: Simplify right side
    240,603.19x = 46,017,411,184.52
  5. Step 5: Solve for x
    x = 46,017,411,184.52/240,603.19
  6. Step 6: Final answer
    x = 191,258.52

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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.