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Finding the Fourth Proportional to 368,690.68, 553,123.50 and 119,372.68

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Solution

The fourth proportional to 368,690.68, 553,123.50 and 119,372.68 is: 179,087.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,690.68 : 553,123.50 = 119,372.68 : x
  2. Step 2: Convert to fraction form
    368,690.68/553,123.50 = 119,372.68/x
  3. Step 3: Cross multiply
    368,690.68x = 553,123.50 × 119,372.68
  4. Step 4: Simplify right side
    368,690.68x = 66,027,834,565.98
  5. Step 5: Solve for x
    x = 66,027,834,565.98/368,690.68
  6. Step 6: Final answer
    x = 179,087.34

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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.