Home / 317,631.16-438,345.30-190,304.02

Finding the Fourth Proportional to 317,631.16, 438,345.30 and 190,304.02

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Solution

The fourth proportional to 317,631.16, 438,345.30 and 190,304.02 is: 262,628.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,631.16 : 438,345.30 = 190,304.02 : x
  2. Step 2: Convert to fraction form
    317,631.16/438,345.30 = 190,304.02/x
  3. Step 3: Cross multiply
    317,631.16x = 438,345.30 × 190,304.02
  4. Step 4: Simplify right side
    317,631.16x = 83,418,872,738.11
  5. Step 5: Solve for x
    x = 83,418,872,738.11/317,631.16
  6. Step 6: Final answer
    x = 262,628.11

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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.