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Finding the Fourth Proportional to 445,305.50, 614,523.75 and 266,457.50

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Solution

The fourth proportional to 445,305.50, 614,523.75 and 266,457.50 is: 367,712.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,305.50 : 614,523.75 = 266,457.50 : x
  2. Step 2: Convert to fraction form
    445,305.50/614,523.75 = 266,457.50/x
  3. Step 3: Cross multiply
    445,305.50x = 614,523.75 × 266,457.50
  4. Step 4: Simplify right side
    445,305.50x = 163,744,462,115.63
  5. Step 5: Solve for x
    x = 163,744,462,115.63/445,305.50
  6. Step 6: Final answer
    x = 367,712.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.