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Finding the Fourth Proportional to 219,386.88, 302,750.87 and 122,592.69

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Solution

The fourth proportional to 219,386.88, 302,750.87 and 122,592.69 is: 169,176.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,386.88 : 302,750.87 = 122,592.69 : x
  2. Step 2: Convert to fraction form
    219,386.88/302,750.87 = 122,592.69/x
  3. Step 3: Cross multiply
    219,386.88x = 302,750.87 × 122,592.69
  4. Step 4: Simplify right side
    219,386.88x = 37,115,042,940.18
  5. Step 5: Solve for x
    x = 37,115,042,940.18/219,386.88
  6. Step 6: Final answer
    x = 169,176.22

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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.