Home / 219,298.50-302,634.48-128,656.02

Finding the Fourth Proportional to 219,298.50, 302,634.48 and 128,656.02

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Solution

The fourth proportional to 219,298.50, 302,634.48 and 128,656.02 is: 177,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,298.50 : 302,634.48 = 128,656.02 : x
  2. Step 2: Convert to fraction form
    219,298.50/302,634.48 = 128,656.02/x
  3. Step 3: Cross multiply
    219,298.50x = 302,634.48 × 128,656.02
  4. Step 4: Simplify right side
    219,298.50x = 38,935,747,711.57
  5. Step 5: Solve for x
    x = 38,935,747,711.57/219,298.50
  6. Step 6: Final answer
    x = 177,546.80

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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.