Home / 545,289.40-817,964.61-166,222.45

Finding the Fourth Proportional to 545,289.40, 817,964.61 and 166,222.45

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Solution

The fourth proportional to 545,289.40, 817,964.61 and 166,222.45 is: 249,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,289.40 : 817,964.61 = 166,222.45 : x
  2. Step 2: Convert to fraction form
    545,289.40/817,964.61 = 166,222.45/x
  3. Step 3: Cross multiply
    545,289.40x = 817,964.61 × 166,222.45
  4. Step 4: Simplify right side
    545,289.40x = 135,964,076,566.56
  5. Step 5: Solve for x
    x = 135,964,076,566.56/545,289.40
  6. Step 6: Final answer
    x = 249,342.97

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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.