Home / 312,208.17-430,746.71-191,223.33

Finding the Fourth Proportional to 312,208.17, 430,746.71 and 191,223.33

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Solution

The fourth proportional to 312,208.17, 430,746.71 and 191,223.33 is: 263,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,208.17 : 430,746.71 = 191,223.33 : x
  2. Step 2: Convert to fraction form
    312,208.17/430,746.71 = 191,223.33/x
  3. Step 3: Cross multiply
    312,208.17x = 430,746.71 × 191,223.33
  4. Step 4: Simplify right side
    312,208.17x = 82,368,819,316.63
  5. Step 5: Solve for x
    x = 82,368,819,316.63/312,208.17
  6. Step 6: Final answer
    x = 263,826.60

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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.