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Finding the Fourth Proportional to 314,792.10, 434,400.44 and 171,549.05

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Solution

The fourth proportional to 314,792.10, 434,400.44 and 171,549.05 is: 236,730.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,792.10 : 434,400.44 = 171,549.05 : x
  2. Step 2: Convert to fraction form
    314,792.10/434,400.44 = 171,549.05/x
  3. Step 3: Cross multiply
    314,792.10x = 434,400.44 × 171,549.05
  4. Step 4: Simplify right side
    314,792.10x = 74,520,979,771.83
  5. Step 5: Solve for x
    x = 74,520,979,771.83/314,792.10
  6. Step 6: Final answer
    x = 236,730.78

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1.5x scale

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.