Home / 219,292.06-302,625.51-128,649.58

Finding the Fourth Proportional to 219,292.06, 302,625.51 and 128,649.58

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Solution

The fourth proportional to 219,292.06, 302,625.51 and 128,649.58 is: 177,537.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,292.06 : 302,625.51 = 128,649.58 : x
  2. Step 2: Convert to fraction form
    219,292.06/302,625.51 = 128,649.58/x
  3. Step 3: Cross multiply
    219,292.06x = 302,625.51 × 128,649.58
  4. Step 4: Simplify right side
    219,292.06x = 38,932,644,758.79
  5. Step 5: Solve for x
    x = 38,932,644,758.79/219,292.06
  6. Step 6: Final answer
    x = 177,537.87

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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.