Home / 397,928.37-549,144.47-216,641.56

Finding the Fourth Proportional to 397,928.37, 549,144.47 and 216,641.56

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Solution

The fourth proportional to 397,928.37, 549,144.47 and 216,641.56 is: 298,967.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,928.37 : 549,144.47 = 216,641.56 : x
  2. Step 2: Convert to fraction form
    397,928.37/549,144.47 = 216,641.56/x
  3. Step 3: Cross multiply
    397,928.37x = 549,144.47 × 216,641.56
  4. Step 4: Simplify right side
    397,928.37x = 118,967,514,646.17
  5. Step 5: Solve for x
    x = 118,967,514,646.17/397,928.37
  6. Step 6: Final answer
    x = 298,967.16

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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.