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Finding the Fourth Proportional to 253,189.40, 349,444.34 and 145,821.59

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Solution

The fourth proportional to 253,189.40, 349,444.34 and 145,821.59 is: 201,258.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,189.40 : 349,444.34 = 145,821.59 : x
  2. Step 2: Convert to fraction form
    253,189.40/349,444.34 = 145,821.59/x
  3. Step 3: Cross multiply
    253,189.40x = 349,444.34 × 145,821.59
  4. Step 4: Simplify right side
    253,189.40x = 50,956,529,275.30
  5. Step 5: Solve for x
    x = 50,956,529,275.30/253,189.40
  6. Step 6: Final answer
    x = 201,258.54

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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.