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Finding the Fourth Proportional to 306,536.92, 459,805.56 and 84,920.92

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Solution

The fourth proportional to 306,536.92, 459,805.56 and 84,920.92 is: 127,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,536.92 : 459,805.56 = 84,920.92 : x
  2. Step 2: Convert to fraction form
    306,536.92/459,805.56 = 84,920.92/x
  3. Step 3: Cross multiply
    306,536.92x = 459,805.56 × 84,920.92
  4. Step 4: Simplify right side
    306,536.92x = 39,047,111,176.32
  5. Step 5: Solve for x
    x = 39,047,111,176.32/306,536.92
  6. Step 6: Final answer
    x = 127,381.43

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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.