Home / 219,955.09-303,544.75-129,294.42

Finding the Fourth Proportional to 219,955.09, 303,544.75 and 129,294.42

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Solution

The fourth proportional to 219,955.09, 303,544.75 and 129,294.42 is: 178,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,955.09 : 303,544.75 = 129,294.42 : x
  2. Step 2: Convert to fraction form
    219,955.09/303,544.75 = 129,294.42/x
  3. Step 3: Cross multiply
    219,955.09x = 303,544.75 × 129,294.42
  4. Step 4: Simplify right side
    219,955.09x = 39,246,642,395.30
  5. Step 5: Solve for x
    x = 39,246,642,395.30/219,955.09
  6. Step 6: Final answer
    x = 178,430.25

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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.