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Finding the Fourth Proportional to 318,817, 439,967.46 and 175,576.74

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Solution

The fourth proportional to 318,817, 439,967.46 and 175,576.74 is: 242,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,817 : 439,967.46 = 175,576.74 : x
  2. Step 2: Convert to fraction form
    318,817/439,967.46 = 175,576.74/x
  3. Step 3: Cross multiply
    318,817x = 439,967.46 × 175,576.74
  4. Step 4: Simplify right side
    318,817x = 77,248,052,332.88
  5. Step 5: Solve for x
    x = 77,248,052,332.88/318,817
  6. Step 6: Final answer
    x = 242,295.90

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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.