Home / 307,156.14-423,909.90-171,202.50

Finding the Fourth Proportional to 307,156.14, 423,909.90 and 171,202.50

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Solution

The fourth proportional to 307,156.14, 423,909.90 and 171,202.50 is: 236,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,156.14 : 423,909.90 = 171,202.50 : x
  2. Step 2: Convert to fraction form
    307,156.14/423,909.90 = 171,202.50/x
  3. Step 3: Cross multiply
    307,156.14x = 423,909.90 × 171,202.50
  4. Step 4: Simplify right side
    307,156.14x = 72,574,434,654.75
  5. Step 5: Solve for x
    x = 72,574,434,654.75/307,156.14
  6. Step 6: Final answer
    x = 236,278.64

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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.