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Finding the Fourth Proportional to 315,444.74, 435,275.44 and 179,495.96

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Solution

The fourth proportional to 315,444.74, 435,275.44 and 179,495.96 is: 247,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,444.74 : 435,275.44 = 179,495.96 : x
  2. Step 2: Convert to fraction form
    315,444.74/435,275.44 = 179,495.96/x
  3. Step 3: Cross multiply
    315,444.74x = 435,275.44 × 179,495.96
  4. Step 4: Simplify right side
    315,444.74x = 78,130,180,342.11
  5. Step 5: Solve for x
    x = 78,130,180,342.11/315,444.74
  6. Step 6: Final answer
    x = 247,682.63

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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.