Home / 218,927.18-302,119.80-118,325.18

Finding the Fourth Proportional to 218,927.18, 302,119.80 and 118,325.18

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Solution

The fourth proportional to 218,927.18, 302,119.80 and 118,325.18 is: 163,288.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,927.18 : 302,119.80 = 118,325.18 : x
  2. Step 2: Convert to fraction form
    218,927.18/302,119.80 = 118,325.18/x
  3. Step 3: Cross multiply
    218,927.18x = 302,119.80 × 118,325.18
  4. Step 4: Simplify right side
    218,927.18x = 35,748,379,716.56
  5. Step 5: Solve for x
    x = 35,748,379,716.56/218,927.18
  6. Step 6: Final answer
    x = 163,288.91

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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.