Home / 397,831.12-549,018.62-216,554.88

Finding the Fourth Proportional to 397,831.12, 549,018.62 and 216,554.88

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Solution

The fourth proportional to 397,831.12, 549,018.62 and 216,554.88 is: 298,852.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,831.12 : 549,018.62 = 216,554.88 : x
  2. Step 2: Convert to fraction form
    397,831.12/549,018.62 = 216,554.88/x
  3. Step 3: Cross multiply
    397,831.12x = 549,018.62 × 216,554.88
  4. Step 4: Simplify right side
    397,831.12x = 118,892,657,544.00
  5. Step 5: Solve for x
    x = 118,892,657,544.00/397,831.12
  6. Step 6: Final answer
    x = 298,852.08

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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.