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Finding the Fourth Proportional to 307,170.64, 423,877.80 and 171,200.08

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Solution

The fourth proportional to 307,170.64, 423,877.80 and 171,200.08 is: 236,246.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,170.64 : 423,877.80 = 171,200.08 : x
  2. Step 2: Convert to fraction form
    307,170.64/423,877.80 = 171,200.08/x
  3. Step 3: Cross multiply
    307,170.64x = 423,877.80 × 171,200.08
  4. Step 4: Simplify right side
    307,170.64x = 72,567,913,270.22
  5. Step 5: Solve for x
    x = 72,567,913,270.22/307,170.64
  6. Step 6: Final answer
    x = 236,246.25

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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.