Home / 545,141.42-817,654.62-145,822.50

Finding the Fourth Proportional to 545,141.42, 817,654.62 and 145,822.50

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Solution

The fourth proportional to 545,141.42, 817,654.62 and 145,822.50 is: 218,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,141.42 : 817,654.62 = 145,822.50 : x
  2. Step 2: Convert to fraction form
    545,141.42/817,654.62 = 145,822.50/x
  3. Step 3: Cross multiply
    545,141.42x = 817,654.62 × 145,822.50
  4. Step 4: Simplify right side
    545,141.42x = 119,232,440,824.95
  5. Step 5: Solve for x
    x = 119,232,440,824.95/545,141.42
  6. Step 6: Final answer
    x = 218,718.37

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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.