Home / 222,501.30-307,073.70-127,022.28

Finding the Fourth Proportional to 222,501.30, 307,073.70 and 127,022.28

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Solution

The fourth proportional to 222,501.30, 307,073.70 and 127,022.28 is: 175,303.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,501.30 : 307,073.70 = 127,022.28 : x
  2. Step 2: Convert to fraction form
    222,501.30/307,073.70 = 127,022.28/x
  3. Step 3: Cross multiply
    222,501.30x = 307,073.70 × 127,022.28
  4. Step 4: Simplify right side
    222,501.30x = 39,005,201,502.04
  5. Step 5: Solve for x
    x = 39,005,201,502.04/222,501.30
  6. Step 6: Final answer
    x = 175,303.25

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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.