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Finding the Fourth Proportional to 230,444.36, 345,666.54 and 72,685.11

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Solution

The fourth proportional to 230,444.36, 345,666.54 and 72,685.11 is: 109,027.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,444.36 : 345,666.54 = 72,685.11 : x
  2. Step 2: Convert to fraction form
    230,444.36/345,666.54 = 72,685.11/x
  3. Step 3: Cross multiply
    230,444.36x = 345,666.54 × 72,685.11
  4. Step 4: Simplify right side
    230,444.36x = 25,124,812,052.04
  5. Step 5: Solve for x
    x = 25,124,812,052.04/230,444.36
  6. Step 6: Final answer
    x = 109,027.67

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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.