Home / 240,587.73-331,981.95-138,646.59

Finding the Fourth Proportional to 240,587.73, 331,981.95 and 138,646.59

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Solution

The fourth proportional to 240,587.73, 331,981.95 and 138,646.59 is: 191,315.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,587.73 : 331,981.95 = 138,646.59 : x
  2. Step 2: Convert to fraction form
    240,587.73/331,981.95 = 138,646.59/x
  3. Step 3: Cross multiply
    240,587.73x = 331,981.95 × 138,646.59
  4. Step 4: Simplify right side
    240,587.73x = 46,028,165,309.05
  5. Step 5: Solve for x
    x = 46,028,165,309.05/240,587.73
  6. Step 6: Final answer
    x = 191,315.51

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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.