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Finding the Fourth Proportional to 438,035.52, 604,486.08 and 247,050.72

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Solution

The fourth proportional to 438,035.52, 604,486.08 and 247,050.72 is: 340,928.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,035.52 : 604,486.08 = 247,050.72 : x
  2. Step 2: Convert to fraction form
    438,035.52/604,486.08 = 247,050.72/x
  3. Step 3: Cross multiply
    438,035.52x = 604,486.08 × 247,050.72
  4. Step 4: Simplify right side
    438,035.52x = 149,338,721,293.98
  5. Step 5: Solve for x
    x = 149,338,721,293.98/438,035.52
  6. Step 6: Final answer
    x = 340,928.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.