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Finding the Fourth Proportional to 145,219.22, 217,842.27 and 56,479.46

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Solution

The fourth proportional to 145,219.22, 217,842.27 and 56,479.46 is: 84,724.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,219.22 : 217,842.27 = 56,479.46 : x
  2. Step 2: Convert to fraction form
    145,219.22/217,842.27 = 56,479.46/x
  3. Step 3: Cross multiply
    145,219.22x = 217,842.27 × 56,479.46
  4. Step 4: Simplify right side
    145,219.22x = 12,303,613,774.77
  5. Step 5: Solve for x
    x = 12,303,613,774.77/145,219.22
  6. Step 6: Final answer
    x = 84,724.42

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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.