Home / 438,769.45-658,154.18-106,345.45

Finding the Fourth Proportional to 438,769.45, 658,154.18 and 106,345.45

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Solution

The fourth proportional to 438,769.45, 658,154.18 and 106,345.45 is: 159,518.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,769.45 : 658,154.18 = 106,345.45 : x
  2. Step 2: Convert to fraction form
    438,769.45/658,154.18 = 106,345.45/x
  3. Step 3: Cross multiply
    438,769.45x = 658,154.18 × 106,345.45
  4. Step 4: Simplify right side
    438,769.45x = 69,991,698,618.98
  5. Step 5: Solve for x
    x = 69,991,698,618.98/438,769.45
  6. Step 6: Final answer
    x = 159,518.17

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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.