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Finding the Fourth Proportional to 318,846.46, 439,987.93 and 175,606.50

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Solution

The fourth proportional to 318,846.46, 439,987.93 and 175,606.50 is: 242,325.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,846.46 : 439,987.93 = 175,606.50 : x
  2. Step 2: Convert to fraction form
    318,846.46/439,987.93 = 175,606.50/x
  3. Step 3: Cross multiply
    318,846.46x = 439,987.93 × 175,606.50
  4. Step 4: Simplify right side
    318,846.46x = 77,264,740,429.55
  5. Step 5: Solve for x
    x = 77,264,740,429.55/318,846.46
  6. Step 6: Final answer
    x = 242,325.85

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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.