Home / 317,977.10-438,712.71-190,606.22

Finding the Fourth Proportional to 317,977.10, 438,712.71 and 190,606.22

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Solution

The fourth proportional to 317,977.10, 438,712.71 and 190,606.22 is: 262,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,977.10 : 438,712.71 = 190,606.22 : x
  2. Step 2: Convert to fraction form
    317,977.10/438,712.71 = 190,606.22/x
  3. Step 3: Cross multiply
    317,977.10x = 438,712.71 × 190,606.22
  4. Step 4: Simplify right side
    317,977.10x = 83,621,371,319.06
  5. Step 5: Solve for x
    x = 83,621,371,319.06/317,977.10
  6. Step 6: Final answer
    x = 262,979.22

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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.