Home / 398,085.45-549,403.32-236,941.02

Finding the Fourth Proportional to 398,085.45, 549,403.32 and 236,941.02

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Solution

The fourth proportional to 398,085.45, 549,403.32 and 236,941.02 is: 327,005.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,085.45 : 549,403.32 = 236,941.02 : x
  2. Step 2: Convert to fraction form
    398,085.45/549,403.32 = 236,941.02/x
  3. Step 3: Cross multiply
    398,085.45x = 549,403.32 × 236,941.02
  4. Step 4: Simplify right side
    398,085.45x = 130,176,183,032.19
  5. Step 5: Solve for x
    x = 130,176,183,032.19/398,085.45
  6. Step 6: Final answer
    x = 327,005.63

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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.