Home / 397,925.35-549,126.61-216,640.87

Finding the Fourth Proportional to 397,925.35, 549,126.61 and 216,640.87

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Solution

The fourth proportional to 397,925.35, 549,126.61 and 216,640.87 is: 298,958.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,925.35 : 549,126.61 = 216,640.87 : x
  2. Step 2: Convert to fraction form
    397,925.35/549,126.61 = 216,640.87/x
  3. Step 3: Cross multiply
    397,925.35x = 549,126.61 × 216,640.87
  4. Step 4: Simplify right side
    397,925.35x = 118,963,266,530.55
  5. Step 5: Solve for x
    x = 118,963,266,530.55/397,925.35
  6. Step 6: Final answer
    x = 298,958.75

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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.