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Finding the Fourth Proportional to 636,242.76, 954,339.22 and 215,518.63

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Solution

The fourth proportional to 636,242.76, 954,339.22 and 215,518.63 is: 323,269.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,242.76 : 954,339.22 = 215,518.63 : x
  2. Step 2: Convert to fraction form
    636,242.76/954,339.22 = 215,518.63/x
  3. Step 3: Cross multiply
    636,242.76x = 954,339.22 × 215,518.63
  4. Step 4: Simplify right side
    636,242.76x = 205,677,881,249.67
  5. Step 5: Solve for x
    x = 205,677,881,249.67/636,242.76
  6. Step 6: Final answer
    x = 323,269.50

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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.