Home / 317,972.10-438,705.81-190,601.22

Finding the Fourth Proportional to 317,972.10, 438,705.81 and 190,601.22

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Solution

The fourth proportional to 317,972.10, 438,705.81 and 190,601.22 is: 262,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,972.10 : 438,705.81 = 190,601.22 : x
  2. Step 2: Convert to fraction form
    317,972.10/438,705.81 = 190,601.22/x
  3. Step 3: Cross multiply
    317,972.10x = 438,705.81 × 190,601.22
  4. Step 4: Simplify right side
    317,972.10x = 83,617,862,607.09
  5. Step 5: Solve for x
    x = 83,617,862,607.09/317,972.10
  6. Step 6: Final answer
    x = 262,972.33

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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.