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Finding the Fourth Proportional to 378,670.55, 522,616.04 and 240,862.89

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Solution

The fourth proportional to 378,670.55, 522,616.04 and 240,862.89 is: 332,423.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,670.55 : 522,616.04 = 240,862.89 : x
  2. Step 2: Convert to fraction form
    378,670.55/522,616.04 = 240,862.89/x
  3. Step 3: Cross multiply
    378,670.55x = 522,616.04 × 240,862.89
  4. Step 4: Simplify right side
    378,670.55x = 125,878,809,604.92
  5. Step 5: Solve for x
    x = 125,878,809,604.92/378,670.55
  6. Step 6: Final answer
    x = 332,423.03

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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.