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Finding the Fourth Proportional to 315,124.85, 434,854.94 and 179,139.94

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Solution

The fourth proportional to 315,124.85, 434,854.94 and 179,139.94 is: 247,203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,124.85 : 434,854.94 = 179,139.94 : x
  2. Step 2: Convert to fraction form
    315,124.85/434,854.94 = 179,139.94/x
  3. Step 3: Cross multiply
    315,124.85x = 434,854.94 × 179,139.94
  4. Step 4: Simplify right side
    315,124.85x = 77,899,885,877.47
  5. Step 5: Solve for x
    x = 77,899,885,877.47/315,124.85
  6. Step 6: Final answer
    x = 247,203.24

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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.