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Finding the Fourth Proportional to 383,278.79, 575,046.14 and 170,017.28

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Solution

The fourth proportional to 383,278.79, 575,046.14 and 170,017.28 is: 255,082.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,278.79 : 575,046.14 = 170,017.28 : x
  2. Step 2: Convert to fraction form
    383,278.79/575,046.14 = 170,017.28/x
  3. Step 3: Cross multiply
    383,278.79x = 575,046.14 × 170,017.28
  4. Step 4: Simplify right side
    383,278.79x = 97,767,776,871.98
  5. Step 5: Solve for x
    x = 97,767,776,871.98/383,278.79
  6. Step 6: Final answer
    x = 255,082.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.