Home / 389,271.42-537,178.23-219,521.34

Finding the Fourth Proportional to 389,271.42, 537,178.23 and 219,521.34

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Solution

The fourth proportional to 389,271.42, 537,178.23 and 219,521.34 is: 302,930.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,271.42 : 537,178.23 = 219,521.34 : x
  2. Step 2: Convert to fraction form
    389,271.42/537,178.23 = 219,521.34/x
  3. Step 3: Cross multiply
    389,271.42x = 537,178.23 × 219,521.34
  4. Step 4: Simplify right side
    389,271.42x = 117,922,084,868.43
  5. Step 5: Solve for x
    x = 117,922,084,868.43/389,271.42
  6. Step 6: Final answer
    x = 302,930.24

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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.