Home / 317,849.28-438,670.08-190,520.64

Finding the Fourth Proportional to 317,849.28, 438,670.08 and 190,520.64

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Solution

The fourth proportional to 317,849.28, 438,670.08 and 190,520.64 is: 262,941.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,849.28 : 438,670.08 = 190,520.64 : x
  2. Step 2: Convert to fraction form
    317,849.28/438,670.08 = 190,520.64/x
  3. Step 3: Cross multiply
    317,849.28x = 438,670.08 × 190,520.64
  4. Step 4: Simplify right side
    317,849.28x = 83,575,704,390.45
  5. Step 5: Solve for x
    x = 83,575,704,390.45/317,849.28
  6. Step 6: Final answer
    x = 262,941.30

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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.