Home / 197,916.80-296,875.20-190,918.40

Finding the Fourth Proportional to 197,916.80, 296,875.20 and 190,918.40

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Solution

The fourth proportional to 197,916.80, 296,875.20 and 190,918.40 is: 286,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,916.80 : 296,875.20 = 190,918.40 : x
  2. Step 2: Convert to fraction form
    197,916.80/296,875.20 = 190,918.40/x
  3. Step 3: Cross multiply
    197,916.80x = 296,875.20 × 190,918.40
  4. Step 4: Simplify right side
    197,916.80x = 56,678,938,183.68
  5. Step 5: Solve for x
    x = 56,678,938,183.68/197,916.80
  6. Step 6: Final answer
    x = 286,377.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.