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Finding the Fourth Proportional to 487,405.40, 730,796.63 and 234,181.98

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Solution

The fourth proportional to 487,405.40, 730,796.63 and 234,181.98 is: 351,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,405.40 : 730,796.63 = 234,181.98 : x
  2. Step 2: Convert to fraction form
    487,405.40/730,796.63 = 234,181.98/x
  3. Step 3: Cross multiply
    487,405.40x = 730,796.63 × 234,181.98
  4. Step 4: Simplify right side
    487,405.40x = 171,139,400,619.82
  5. Step 5: Solve for x
    x = 171,139,400,619.82/487,405.40
  6. Step 6: Final answer
    x = 351,123.32

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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.