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Finding the Fourth Proportional to 318,347.64, 439,310.57 and 175,107.67

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Solution

The fourth proportional to 318,347.64, 439,310.57 and 175,107.67 is: 241,643.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,347.64 : 439,310.57 = 175,107.67 : x
  2. Step 2: Convert to fraction form
    318,347.64/439,310.57 = 175,107.67/x
  3. Step 3: Cross multiply
    318,347.64x = 439,310.57 × 175,107.67
  4. Step 4: Simplify right side
    318,347.64x = 76,926,650,319.07
  5. Step 5: Solve for x
    x = 76,926,650,319.07/318,347.64
  6. Step 6: Final answer
    x = 241,643.54

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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.