Home / 218,278.16-301,199.40-122,782.76

Finding the Fourth Proportional to 218,278.16, 301,199.40 and 122,782.76

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Solution

The fourth proportional to 218,278.16, 301,199.40 and 122,782.76 is: 169,426.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,278.16 : 301,199.40 = 122,782.76 : x
  2. Step 2: Convert to fraction form
    218,278.16/301,199.40 = 122,782.76/x
  3. Step 3: Cross multiply
    218,278.16x = 301,199.40 × 122,782.76
  4. Step 4: Simplify right side
    218,278.16x = 36,982,093,642.34
  5. Step 5: Solve for x
    x = 36,982,093,642.34/218,278.16
  6. Step 6: Final answer
    x = 169,426.45

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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.