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Finding the Fourth Proportional to 438,039.44, 604,492.80 and 247,051.64

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Solution

The fourth proportional to 438,039.44, 604,492.80 and 247,051.64 is: 340,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,039.44 : 604,492.80 = 247,051.64 : x
  2. Step 2: Convert to fraction form
    438,039.44/604,492.80 = 247,051.64/x
  3. Step 3: Cross multiply
    438,039.44x = 604,492.80 × 247,051.64
  4. Step 4: Simplify right side
    438,039.44x = 149,340,937,608.19
  5. Step 5: Solve for x
    x = 149,340,937,608.19/438,039.44
  6. Step 6: Final answer
    x = 340,930.35

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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.