Home / 219,046.92-302,288.67-128,468.19

Finding the Fourth Proportional to 219,046.92, 302,288.67 and 128,468.19

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Solution

The fourth proportional to 219,046.92, 302,288.67 and 128,468.19 is: 177,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,046.92 : 302,288.67 = 128,468.19 : x
  2. Step 2: Convert to fraction form
    219,046.92/302,288.67 = 128,468.19/x
  3. Step 3: Cross multiply
    219,046.92x = 302,288.67 × 128,468.19
  4. Step 4: Simplify right side
    219,046.92x = 38,834,478,292.41
  5. Step 5: Solve for x
    x = 38,834,478,292.41/219,046.92
  6. Step 6: Final answer
    x = 177,288.40

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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.