Home / 218,381.48-301,342.02-122,921

Finding the Fourth Proportional to 218,381.48, 301,342.02 and 122,921

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Solution

The fourth proportional to 218,381.48, 301,342.02 and 122,921 is: 169,617.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,381.48 : 301,342.02 = 122,921 : x
  2. Step 2: Convert to fraction form
    218,381.48/301,342.02 = 122,921/x
  3. Step 3: Cross multiply
    218,381.48x = 301,342.02 × 122,921
  4. Step 4: Simplify right side
    218,381.48x = 37,041,262,440.42
  5. Step 5: Solve for x
    x = 37,041,262,440.42/218,381.48
  6. Step 6: Final answer
    x = 169,617.23

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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.