Home / 545,143.42-817,657.61-145,824.50

Finding the Fourth Proportional to 545,143.42, 817,657.61 and 145,824.50

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Solution

The fourth proportional to 545,143.42, 817,657.61 and 145,824.50 is: 218,721.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,143.42 : 817,657.61 = 145,824.50 : x
  2. Step 2: Convert to fraction form
    545,143.42/817,657.61 = 145,824.50/x
  3. Step 3: Cross multiply
    545,143.42x = 817,657.61 × 145,824.50
  4. Step 4: Simplify right side
    545,143.42x = 119,234,512,149.45
  5. Step 5: Solve for x
    x = 119,234,512,149.45/545,143.42
  6. Step 6: Final answer
    x = 218,721.36

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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.