Home / 230,183.28-317,648.10-128,208.48

Finding the Fourth Proportional to 230,183.28, 317,648.10 and 128,208.48

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Solution

The fourth proportional to 230,183.28, 317,648.10 and 128,208.48 is: 176,925.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,183.28 : 317,648.10 = 128,208.48 : x
  2. Step 2: Convert to fraction form
    230,183.28/317,648.10 = 128,208.48/x
  3. Step 3: Cross multiply
    230,183.28x = 317,648.10 × 128,208.48
  4. Step 4: Simplify right side
    230,183.28x = 40,725,180,075.89
  5. Step 5: Solve for x
    x = 40,725,180,075.89/230,183.28
  6. Step 6: Final answer
    x = 176,925.01

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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.