Home / 328,529.84-492,848.01-128,741.90

Finding the Fourth Proportional to 328,529.84, 492,848.01 and 128,741.90

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Solution

The fourth proportional to 328,529.84, 492,848.01 and 128,741.90 is: 193,133.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,529.84 : 492,848.01 = 128,741.90 : x
  2. Step 2: Convert to fraction form
    328,529.84/492,848.01 = 128,741.90/x
  3. Step 3: Cross multiply
    328,529.84x = 492,848.01 × 128,741.90
  4. Step 4: Simplify right side
    328,529.84x = 63,450,186,754.38
  5. Step 5: Solve for x
    x = 63,450,186,754.38/328,529.84
  6. Step 6: Final answer
    x = 193,133.71

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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.