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Finding the Fourth Proportional to 617,607.86, 926,486.51 and 218,166.89

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Solution

The fourth proportional to 617,607.86, 926,486.51 and 218,166.89 is: 327,276.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,607.86 : 926,486.51 = 218,166.89 : x
  2. Step 2: Convert to fraction form
    617,607.86/926,486.51 = 218,166.89/x
  3. Step 3: Cross multiply
    617,607.86x = 926,486.51 × 218,166.89
  4. Step 4: Simplify right side
    617,607.86x = 202,128,674,790.39
  5. Step 5: Solve for x
    x = 202,128,674,790.39/617,607.86
  6. Step 6: Final answer
    x = 327,276.72

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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.