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Finding the Fourth Proportional to 341,751.40, 513,048.30 and 215,391.40

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Solution

The fourth proportional to 341,751.40, 513,048.30 and 215,391.40 is: 323,352.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,751.40 : 513,048.30 = 215,391.40 : x
  2. Step 2: Convert to fraction form
    341,751.40/513,048.30 = 215,391.40/x
  3. Step 3: Cross multiply
    341,751.40x = 513,048.30 × 215,391.40
  4. Step 4: Simplify right side
    341,751.40x = 110,506,191,604.62
  5. Step 5: Solve for x
    x = 110,506,191,604.62/341,751.40
  6. Step 6: Final answer
    x = 323,352.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.