Home / 397,870.14-549,067.80-216,587.28

Finding the Fourth Proportional to 397,870.14, 549,067.80 and 216,587.28

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Solution

The fourth proportional to 397,870.14, 549,067.80 and 216,587.28 is: 298,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,870.14 : 549,067.80 = 216,587.28 : x
  2. Step 2: Convert to fraction form
    397,870.14/549,067.80 = 216,587.28/x
  3. Step 3: Cross multiply
    397,870.14x = 549,067.80 × 216,587.28
  4. Step 4: Simplify right side
    397,870.14x = 118,921,101,337.58
  5. Step 5: Solve for x
    x = 118,921,101,337.58/397,870.14
  6. Step 6: Final answer
    x = 298,894.26

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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.