Home / 226,349.51-312,368.13-128,224.69

Finding the Fourth Proportional to 226,349.51, 312,368.13 and 128,224.69

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Solution

The fourth proportional to 226,349.51, 312,368.13 and 128,224.69 is: 176,953.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,349.51 : 312,368.13 = 128,224.69 : x
  2. Step 2: Convert to fraction form
    226,349.51/312,368.13 = 128,224.69/x
  3. Step 3: Cross multiply
    226,349.51x = 312,368.13 × 128,224.69
  4. Step 4: Simplify right side
    226,349.51x = 40,053,305,854.21
  5. Step 5: Solve for x
    x = 40,053,305,854.21/226,349.51
  6. Step 6: Final answer
    x = 176,953.36

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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.