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Finding the Fourth Proportional to 368,250.28, 549,687.05 and 315,995.56

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Solution

The fourth proportional to 368,250.28, 549,687.05 and 315,995.56 is: 471,686.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,250.28 : 549,687.05 = 315,995.56 : x
  2. Step 2: Convert to fraction form
    368,250.28/549,687.05 = 315,995.56/x
  3. Step 3: Cross multiply
    368,250.28x = 549,687.05 × 315,995.56
  4. Step 4: Simplify right side
    368,250.28x = 173,698,667,189.50
  5. Step 5: Solve for x
    x = 173,698,667,189.50/368,250.28
  6. Step 6: Final answer
    x = 471,686.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.