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Finding the Fourth Proportional to 610,914.10, 916,808.55 and 256,182.70

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Solution

The fourth proportional to 610,914.10, 916,808.55 and 256,182.70 is: 384,457.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,914.10 : 916,808.55 = 256,182.70 : x
  2. Step 2: Convert to fraction form
    610,914.10/916,808.55 = 256,182.70/x
  3. Step 3: Cross multiply
    610,914.10x = 916,808.55 × 256,182.70
  4. Step 4: Simplify right side
    610,914.10x = 234,870,489,722.09
  5. Step 5: Solve for x
    x = 234,870,489,722.09/610,914.10
  6. Step 6: Final answer
    x = 384,457.47

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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.