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Finding the Fourth Proportional to 306,484.75, 459,727.13 and 84,868.75

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Solution

The fourth proportional to 306,484.75, 459,727.13 and 84,868.75 is: 127,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,484.75 : 459,727.13 = 84,868.75 : x
  2. Step 2: Convert to fraction form
    306,484.75/459,727.13 = 84,868.75/x
  3. Step 3: Cross multiply
    306,484.75x = 459,727.13 × 84,868.75
  4. Step 4: Simplify right side
    306,484.75x = 39,016,466,864.19
  5. Step 5: Solve for x
    x = 39,016,466,864.19/306,484.75
  6. Step 6: Final answer
    x = 127,303.13

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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.