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Finding the Fourth Proportional to 397,888.51, 549,069.34 and 216,596.67

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Solution

The fourth proportional to 397,888.51, 549,069.34 and 216,596.67 is: 298,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,888.51 : 549,069.34 = 216,596.67 : x
  2. Step 2: Convert to fraction form
    397,888.51/549,069.34 = 216,596.67/x
  3. Step 3: Cross multiply
    397,888.51x = 549,069.34 × 216,596.67
  4. Step 4: Simplify right side
    397,888.51x = 118,926,592,972.85
  5. Step 5: Solve for x
    x = 118,926,592,972.85/397,888.51
  6. Step 6: Final answer
    x = 298,894.26

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1.5x scale

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.