Home / 253,119.06-349,302.78-139,941

Finding the Fourth Proportional to 253,119.06, 349,302.78 and 139,941

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Solution

The fourth proportional to 253,119.06, 349,302.78 and 139,941 is: 193,117.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,119.06 : 349,302.78 = 139,941 : x
  2. Step 2: Convert to fraction form
    253,119.06/349,302.78 = 139,941/x
  3. Step 3: Cross multiply
    253,119.06x = 349,302.78 × 139,941
  4. Step 4: Simplify right side
    253,119.06x = 48,881,780,335.98
  5. Step 5: Solve for x
    x = 48,881,780,335.98/253,119.06
  6. Step 6: Final answer
    x = 193,117.74

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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.