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Finding the Fourth Proportional to 318,868.32, 440,058.22 and 175,628.32

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Solution

The fourth proportional to 318,868.32, 440,058.22 and 175,628.32 is: 242,378.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,868.32 : 440,058.22 = 175,628.32 : x
  2. Step 2: Convert to fraction form
    318,868.32/440,058.22 = 175,628.32/x
  3. Step 3: Cross multiply
    318,868.32x = 440,058.22 × 175,628.32
  4. Step 4: Simplify right side
    318,868.32x = 77,286,685,880.79
  5. Step 5: Solve for x
    x = 77,286,685,880.79/318,868.32
  6. Step 6: Final answer
    x = 242,378.06

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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.