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Finding the Fourth Proportional to 143,575.98, 215,363.95 and 38,392.21

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Solution

The fourth proportional to 143,575.98, 215,363.95 and 38,392.21 is: 57,588.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,575.98 : 215,363.95 = 38,392.21 : x
  2. Step 2: Convert to fraction form
    143,575.98/215,363.95 = 38,392.21/x
  3. Step 3: Cross multiply
    143,575.98x = 215,363.95 × 38,392.21
  4. Step 4: Simplify right side
    143,575.98x = 8,268,298,168.05
  5. Step 5: Solve for x
    x = 8,268,298,168.05/143,575.98
  6. Step 6: Final answer
    x = 57,588.31

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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.