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Finding the Fourth Proportional to 388,840.26, 583,134.30 and 148,941.39

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Solution

The fourth proportional to 388,840.26, 583,134.30 and 148,941.39 is: 223,363.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,840.26 : 583,134.30 = 148,941.39 : x
  2. Step 2: Convert to fraction form
    388,840.26/583,134.30 = 148,941.39/x
  3. Step 3: Cross multiply
    388,840.26x = 583,134.30 × 148,941.39
  4. Step 4: Simplify right side
    388,840.26x = 86,852,833,954.81
  5. Step 5: Solve for x
    x = 86,852,833,954.81/388,840.26
  6. Step 6: Final answer
    x = 223,363.79

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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.