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Finding the Fourth Proportional to 318,946, 440,165.64 and 175,706.32

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Solution

The fourth proportional to 318,946, 440,165.64 and 175,706.32 is: 242,485.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,946 : 440,165.64 = 175,706.32 : x
  2. Step 2: Convert to fraction form
    318,946/440,165.64 = 175,706.32/x
  3. Step 3: Cross multiply
    318,946x = 440,165.64 × 175,706.32
  4. Step 4: Simplify right side
    318,946x = 77,339,884,794.84
  5. Step 5: Solve for x
    x = 77,339,884,794.84/318,946
  6. Step 6: Final answer
    x = 242,485.83

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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.