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Finding the Fourth Proportional to 321,011.55, 481,403.75 and 93,259.79

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Solution

The fourth proportional to 321,011.55, 481,403.75 and 93,259.79 is: 139,856.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,011.55 : 481,403.75 = 93,259.79 : x
  2. Step 2: Convert to fraction form
    321,011.55/481,403.75 = 93,259.79/x
  3. Step 3: Cross multiply
    321,011.55x = 481,403.75 × 93,259.79
  4. Step 4: Simplify right side
    321,011.55x = 44,895,611,562.16
  5. Step 5: Solve for x
    x = 44,895,611,562.16/321,011.55
  6. Step 6: Final answer
    x = 139,856.69

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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.