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Finding the Fourth Proportional to 451,756.72, 677,387.67 and 208,333.63

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Solution

The fourth proportional to 451,756.72, 677,387.67 and 208,333.63 is: 312,386.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,756.72 : 677,387.67 = 208,333.63 : x
  2. Step 2: Convert to fraction form
    451,756.72/677,387.67 = 208,333.63/x
  3. Step 3: Cross multiply
    451,756.72x = 677,387.67 × 208,333.63
  4. Step 4: Simplify right side
    451,756.72x = 141,122,632,208.34
  5. Step 5: Solve for x
    x = 141,122,632,208.34/451,756.72
  6. Step 6: Final answer
    x = 312,386.35

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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.