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Finding the Fourth Proportional to 314,730.87, 434,328.66 and 171,490.95

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Solution

The fourth proportional to 314,730.87, 434,328.66 and 171,490.95 is: 236,657.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,730.87 : 434,328.66 = 171,490.95 : x
  2. Step 2: Convert to fraction form
    314,730.87/434,328.66 = 171,490.95/x
  3. Step 3: Cross multiply
    314,730.87x = 434,328.66 × 171,490.95
  4. Step 4: Simplify right side
    314,730.87x = 74,483,434,515.63
  5. Step 5: Solve for x
    x = 74,483,434,515.63/314,730.87
  6. Step 6: Final answer
    x = 236,657.54

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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.