Home / 219,431.40-302,935.85-137,844.75

Finding the Fourth Proportional to 219,431.40, 302,935.85 and 137,844.75

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Solution

The fourth proportional to 219,431.40, 302,935.85 and 137,844.75 is: 190,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,431.40 : 302,935.85 = 137,844.75 : x
  2. Step 2: Convert to fraction form
    219,431.40/302,935.85 = 137,844.75/x
  3. Step 3: Cross multiply
    219,431.40x = 302,935.85 × 137,844.75
  4. Step 4: Simplify right side
    219,431.40x = 41,758,115,820.06
  5. Step 5: Solve for x
    x = 41,758,115,820.06/219,431.40
  6. Step 6: Final answer
    x = 190,301.46

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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.