Home / 398,341.45-549,088.73-270,795.61

Finding the Fourth Proportional to 398,341.45, 549,088.73 and 270,795.61

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Solution

The fourth proportional to 398,341.45, 549,088.73 and 270,795.61 is: 373,274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,341.45 : 549,088.73 = 270,795.61 : x
  2. Step 2: Convert to fraction form
    398,341.45/549,088.73 = 270,795.61/x
  3. Step 3: Cross multiply
    398,341.45x = 549,088.73 × 270,795.61
  4. Step 4: Simplify right side
    398,341.45x = 148,690,815,873.26
  5. Step 5: Solve for x
    x = 148,690,815,873.26/398,341.45
  6. Step 6: Final answer
    x = 373,274.78

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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.