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Finding the Fourth Proportional to 438,055.83, 657,065.52 and 239,633.37

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Solution

The fourth proportional to 438,055.83, 657,065.52 and 239,633.37 is: 359,440.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,055.83 : 657,065.52 = 239,633.37 : x
  2. Step 2: Convert to fraction form
    438,055.83/657,065.52 = 239,633.37/x
  3. Step 3: Cross multiply
    438,055.83x = 657,065.52 × 239,633.37
  4. Step 4: Simplify right side
    438,055.83x = 157,454,824,868.40
  5. Step 5: Solve for x
    x = 157,454,824,868.40/438,055.83
  6. Step 6: Final answer
    x = 359,440.09

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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.