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Finding the Fourth Proportional to 243,108.60, 364,474.07 and 157,538.69

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Solution

The fourth proportional to 243,108.60, 364,474.07 and 157,538.69 is: 236,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,108.60 : 364,474.07 = 157,538.69 : x
  2. Step 2: Convert to fraction form
    243,108.60/364,474.07 = 157,538.69/x
  3. Step 3: Cross multiply
    243,108.60x = 364,474.07 × 157,538.69
  4. Step 4: Simplify right side
    243,108.60x = 57,418,767,526.77
  5. Step 5: Solve for x
    x = 57,418,767,526.77/243,108.60
  6. Step 6: Final answer
    x = 236,185.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.