Home / 305,855.40-458,783.10-199,567.20

Finding the Fourth Proportional to 305,855.40, 458,783.10 and 199,567.20

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Solution

The fourth proportional to 305,855.40, 458,783.10 and 199,567.20 is: 299,350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,855.40 : 458,783.10 = 199,567.20 : x
  2. Step 2: Convert to fraction form
    305,855.40/458,783.10 = 199,567.20/x
  3. Step 3: Cross multiply
    305,855.40x = 458,783.10 × 199,567.20
  4. Step 4: Simplify right side
    305,855.40x = 91,558,058,674.32
  5. Step 5: Solve for x
    x = 91,558,058,674.32/305,855.40
  6. Step 6: Final answer
    x = 299,350.80

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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.