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Finding the Fourth Proportional to 373,143.34, 514,938 and 211,998.68

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Solution

The fourth proportional to 373,143.34, 514,938 and 211,998.68 is: 292,558.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,143.34 : 514,938 = 211,998.68 : x
  2. Step 2: Convert to fraction form
    373,143.34/514,938 = 211,998.68/x
  3. Step 3: Cross multiply
    373,143.34x = 514,938 × 211,998.68
  4. Step 4: Simplify right side
    373,143.34x = 109,166,176,281.84
  5. Step 5: Solve for x
    x = 109,166,176,281.84/373,143.34
  6. Step 6: Final answer
    x = 292,558.29

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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.