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Finding the Fourth Proportional to 354,408.04, 489,094.91 and 193,271.91

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Solution

The fourth proportional to 354,408.04, 489,094.91 and 193,271.91 is: 266,721.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,408.04 : 489,094.91 = 193,271.91 : x
  2. Step 2: Convert to fraction form
    354,408.04/489,094.91 = 193,271.91/x
  3. Step 3: Cross multiply
    354,408.04x = 489,094.91 × 193,271.91
  4. Step 4: Simplify right side
    354,408.04x = 94,528,304,015.14
  5. Step 5: Solve for x
    x = 94,528,304,015.14/354,408.04
  6. Step 6: Final answer
    x = 266,721.67

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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.