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Finding the Fourth Proportional to 555,208.16, 766,187.10 and 300,559.16

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Solution

The fourth proportional to 555,208.16, 766,187.10 and 300,559.16 is: 414,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,208.16 : 766,187.10 = 300,559.16 : x
  2. Step 2: Convert to fraction form
    555,208.16/766,187.10 = 300,559.16/x
  3. Step 3: Cross multiply
    555,208.16x = 766,187.10 × 300,559.16
  4. Step 4: Simplify right side
    555,208.16x = 230,284,551,178.84
  5. Step 5: Solve for x
    x = 230,284,551,178.84/555,208.16
  6. Step 6: Final answer
    x = 414,771.55

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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.