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Finding the Fourth Proportional to 545,417.26, 818,214.52 and 161,205.10

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Solution

The fourth proportional to 545,417.26, 818,214.52 and 161,205.10 is: 241,833.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,417.26 : 818,214.52 = 161,205.10 : x
  2. Step 2: Convert to fraction form
    545,417.26/818,214.52 = 161,205.10/x
  3. Step 3: Cross multiply
    545,417.26x = 818,214.52 × 161,205.10
  4. Step 4: Simplify right side
    545,417.26x = 131,900,353,518.05
  5. Step 5: Solve for x
    x = 131,900,353,518.05/545,417.26
  6. Step 6: Final answer
    x = 241,833.85

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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.