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Finding the Fourth Proportional to 487,051.55, 730,645.94 and 150,119.45

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Solution

The fourth proportional to 487,051.55, 730,645.94 and 150,119.45 is: 225,200.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,051.55 : 730,645.94 = 150,119.45 : x
  2. Step 2: Convert to fraction form
    487,051.55/730,645.94 = 150,119.45/x
  3. Step 3: Cross multiply
    487,051.55x = 730,645.94 × 150,119.45
  4. Step 4: Simplify right side
    487,051.55x = 109,684,163,379.60
  5. Step 5: Solve for x
    x = 109,684,163,379.60/487,051.55
  6. Step 6: Final answer
    x = 225,200.32

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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.