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Finding the Fourth Proportional to 545,873.46, 818,697.25 and 146,419.21

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Solution

The fourth proportional to 545,873.46, 818,697.25 and 146,419.21 is: 219,598.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,873.46 : 818,697.25 = 146,419.21 : x
  2. Step 2: Convert to fraction form
    545,873.46/818,697.25 = 146,419.21/x
  3. Step 3: Cross multiply
    545,873.46x = 818,697.25 × 146,419.21
  4. Step 4: Simplify right side
    545,873.46x = 119,873,004,574.17
  5. Step 5: Solve for x
    x = 119,873,004,574.17/545,873.46
  6. Step 6: Final answer
    x = 219,598.52

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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.