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Finding the Fourth Proportional to 318,880.58, 440,055.14 and 175,640.61

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Solution

The fourth proportional to 318,880.58, 440,055.14 and 175,640.61 is: 242,384.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,880.58 : 440,055.14 = 175,640.61 : x
  2. Step 2: Convert to fraction form
    318,880.58/440,055.14 = 175,640.61/x
  3. Step 3: Cross multiply
    318,880.58x = 440,055.14 × 175,640.61
  4. Step 4: Simplify right side
    318,880.58x = 77,291,552,345.03
  5. Step 5: Solve for x
    x = 77,291,552,345.03/318,880.58
  6. Step 6: Final answer
    x = 242,384.01

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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.