Home / 393,740.04-543,402.07-240,880.05

Finding the Fourth Proportional to 393,740.04, 543,402.07 and 240,880.05

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Solution

The fourth proportional to 393,740.04, 543,402.07 and 240,880.05 is: 332,439.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,740.04 : 543,402.07 = 240,880.05 : x
  2. Step 2: Convert to fraction form
    393,740.04/543,402.07 = 240,880.05/x
  3. Step 3: Cross multiply
    393,740.04x = 543,402.07 × 240,880.05
  4. Step 4: Simplify right side
    393,740.04x = 130,894,718,717.82
  5. Step 5: Solve for x
    x = 130,894,718,717.82/393,740.04
  6. Step 6: Final answer
    x = 332,439.44

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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.