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Finding the Fourth Proportional to 328,527.76, 492,822.76 and 91,870.40

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Solution

The fourth proportional to 328,527.76, 492,822.76 and 91,870.40 is: 137,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,527.76 : 492,822.76 = 91,870.40 : x
  2. Step 2: Convert to fraction form
    328,527.76/492,822.76 = 91,870.40/x
  3. Step 3: Cross multiply
    328,527.76x = 492,822.76 × 91,870.40
  4. Step 4: Simplify right side
    328,527.76x = 45,275,824,090.30
  5. Step 5: Solve for x
    x = 45,275,824,090.30/328,527.76
  6. Step 6: Final answer
    x = 137,814.30

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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.