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Finding the Fourth Proportional to 426,147.04, 639,054.42 and 159,762.34

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Solution

The fourth proportional to 426,147.04, 639,054.42 and 159,762.34 is: 239,581.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,147.04 : 639,054.42 = 159,762.34 : x
  2. Step 2: Convert to fraction form
    426,147.04/639,054.42 = 159,762.34/x
  3. Step 3: Cross multiply
    426,147.04x = 639,054.42 × 159,762.34
  4. Step 4: Simplify right side
    426,147.04x = 102,096,829,526.54
  5. Step 5: Solve for x
    x = 102,096,829,526.54/426,147.04
  6. Step 6: Final answer
    x = 239,581.22

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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.