Home / 219,176.01-302,460.35-128,513.25

Finding the Fourth Proportional to 219,176.01, 302,460.35 and 128,513.25

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Solution

The fourth proportional to 219,176.01, 302,460.35 and 128,513.25 is: 177,346.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,176.01 : 302,460.35 = 128,513.25 : x
  2. Step 2: Convert to fraction form
    219,176.01/302,460.35 = 128,513.25/x
  3. Step 3: Cross multiply
    219,176.01x = 302,460.35 × 128,513.25
  4. Step 4: Simplify right side
    219,176.01x = 38,870,161,932.07
  5. Step 5: Solve for x
    x = 38,870,161,932.07/219,176.01
  6. Step 6: Final answer
    x = 177,346.79

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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.