Home / 397,852.07-549,042.86-216,569.21

Finding the Fourth Proportional to 397,852.07, 549,042.86 and 216,569.21

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Solution

The fourth proportional to 397,852.07, 549,042.86 and 216,569.21 is: 298,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,852.07 : 549,042.86 = 216,569.21 : x
  2. Step 2: Convert to fraction form
    397,852.07/549,042.86 = 216,569.21/x
  3. Step 3: Cross multiply
    397,852.07x = 549,042.86 × 216,569.21
  4. Step 4: Simplify right side
    397,852.07x = 118,905,777,363.50
  5. Step 5: Solve for x
    x = 118,905,777,363.50/397,852.07
  6. Step 6: Final answer
    x = 298,869.32

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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.