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Finding the Fourth Proportional to 140,389.60, 210,595.44 and 46,895.68

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Solution

The fourth proportional to 140,389.60, 210,595.44 and 46,895.68 is: 70,347.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,389.60 : 210,595.44 = 46,895.68 : x
  2. Step 2: Convert to fraction form
    140,389.60/210,595.44 = 46,895.68/x
  3. Step 3: Cross multiply
    140,389.60x = 210,595.44 × 46,895.68
  4. Step 4: Simplify right side
    140,389.60x = 9,876,016,363.70
  5. Step 5: Solve for x
    x = 9,876,016,363.70/140,389.60
  6. Step 6: Final answer
    x = 70,347.21

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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.