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Finding the Fourth Proportional to 518,133.83, 777,305.52 and 218,615.04

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Solution

The fourth proportional to 518,133.83, 777,305.52 and 218,615.04 is: 327,966.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,133.83 : 777,305.52 = 218,615.04 : x
  2. Step 2: Convert to fraction form
    518,133.83/777,305.52 = 218,615.04/x
  3. Step 3: Cross multiply
    518,133.83x = 777,305.52 × 218,615.04
  4. Step 4: Simplify right side
    518,133.83x = 169,930,677,347.02
  5. Step 5: Solve for x
    x = 169,930,677,347.02/518,133.83
  6. Step 6: Final answer
    x = 327,966.77

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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.