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Finding the Fourth Proportional to 398,556, 549,963.36 and 237,389.04

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Solution

The fourth proportional to 398,556, 549,963.36 and 237,389.04 is: 327,570.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,556 : 549,963.36 = 237,389.04 : x
  2. Step 2: Convert to fraction form
    398,556/549,963.36 = 237,389.04/x
  3. Step 3: Cross multiply
    398,556x = 549,963.36 × 237,389.04
  4. Step 4: Simplify right side
    398,556x = 130,555,274,065.57
  5. Step 5: Solve for x
    x = 130,555,274,065.57/398,556
  6. Step 6: Final answer
    x = 327,570.72

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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.