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Finding the Fourth Proportional to 318,880.83, 440,055.50 and 175,640.87

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Solution

The fourth proportional to 318,880.83, 440,055.50 and 175,640.87 is: 242,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,880.83 : 440,055.50 = 175,640.87 : x
  2. Step 2: Convert to fraction form
    318,880.83/440,055.50 = 175,640.87/x
  3. Step 3: Cross multiply
    318,880.83x = 440,055.50 × 175,640.87
  4. Step 4: Simplify right side
    318,880.83x = 77,291,728,668.01
  5. Step 5: Solve for x
    x = 77,291,728,668.01/318,880.83
  6. Step 6: Final answer
    x = 242,384.37

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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.