Home / 219,058.26-302,330.66-128,436.54

Finding the Fourth Proportional to 219,058.26, 302,330.66 and 128,436.54

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Solution

The fourth proportional to 219,058.26, 302,330.66 and 128,436.54 is: 177,260.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,058.26 : 302,330.66 = 128,436.54 : x
  2. Step 2: Convert to fraction form
    219,058.26/302,330.66 = 128,436.54/x
  3. Step 3: Cross multiply
    219,058.26x = 302,330.66 × 128,436.54
  4. Step 4: Simplify right side
    219,058.26x = 38,830,303,906.32
  5. Step 5: Solve for x
    x = 38,830,303,906.32/219,058.26
  6. Step 6: Final answer
    x = 177,260.17

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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.