Home / 397,823.80-549,008.42-216,547.42

Finding the Fourth Proportional to 397,823.80, 549,008.42 and 216,547.42

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Solution

The fourth proportional to 397,823.80, 549,008.42 and 216,547.42 is: 298,841.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,823.80 : 549,008.42 = 216,547.42 : x
  2. Step 2: Convert to fraction form
    397,823.80/549,008.42 = 216,547.42/x
  3. Step 3: Cross multiply
    397,823.80x = 549,008.42 × 216,547.42
  4. Step 4: Simplify right side
    397,823.80x = 118,886,353,081.50
  5. Step 5: Solve for x
    x = 118,886,353,081.50/397,823.80
  6. Step 6: Final answer
    x = 298,841.73

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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.