Home / 218,913.75-302,101.02-118,311.75

Finding the Fourth Proportional to 218,913.75, 302,101.02 and 118,311.75

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Solution

The fourth proportional to 218,913.75, 302,101.02 and 118,311.75 is: 163,270.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,913.75 : 302,101.02 = 118,311.75 : x
  2. Step 2: Convert to fraction form
    218,913.75/302,101.02 = 118,311.75/x
  3. Step 3: Cross multiply
    218,913.75x = 302,101.02 × 118,311.75
  4. Step 4: Simplify right side
    218,913.75x = 35,742,100,352.99
  5. Step 5: Solve for x
    x = 35,742,100,352.99/218,913.75
  6. Step 6: Final answer
    x = 163,270.24

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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.