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Finding the Fourth Proportional to 318,883.68, 440,079.48 and 175,643.64

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Solution

The fourth proportional to 318,883.68, 440,079.48 and 175,643.64 is: 242,399.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,883.68 : 440,079.48 = 175,643.64 : x
  2. Step 2: Convert to fraction form
    318,883.68/440,079.48 = 175,643.64/x
  3. Step 3: Cross multiply
    318,883.68x = 440,079.48 × 175,643.64
  4. Step 4: Simplify right side
    318,883.68x = 77,297,161,756.51
  5. Step 5: Solve for x
    x = 77,297,161,756.51/318,883.68
  6. Step 6: Final answer
    x = 242,399.24

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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.