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Finding the Fourth Proportional to 493,341.11, 680,810.76 and 266,986.61

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Solution

The fourth proportional to 493,341.11, 680,810.76 and 266,986.61 is: 368,441.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,341.11 : 680,810.76 = 266,986.61 : x
  2. Step 2: Convert to fraction form
    493,341.11/680,810.76 = 266,986.61/x
  3. Step 3: Cross multiply
    493,341.11x = 680,810.76 × 266,986.61
  4. Step 4: Simplify right side
    493,341.11x = 181,767,353,459.87
  5. Step 5: Solve for x
    x = 181,767,353,459.87/493,341.11
  6. Step 6: Final answer
    x = 368,441.53

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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.