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Finding the Fourth Proportional to 500,065.09, 750,325.34 and 211,955.69

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Solution

The fourth proportional to 500,065.09, 750,325.34 and 211,955.69 is: 318,030.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,065.09 : 750,325.34 = 211,955.69 : x
  2. Step 2: Convert to fraction form
    500,065.09/750,325.34 = 211,955.69/x
  3. Step 3: Cross multiply
    500,065.09x = 750,325.34 × 211,955.69
  4. Step 4: Simplify right side
    500,065.09x = 159,035,727,569.89
  5. Step 5: Solve for x
    x = 159,035,727,569.89/500,065.09
  6. Step 6: Final answer
    x = 318,030.06

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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.