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Finding the Fourth Proportional to 518,062.40, 776,863.20 and 237,665.60

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Solution

The fourth proportional to 518,062.40, 776,863.20 and 237,665.60 is: 356,392.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,062.40 : 776,863.20 = 237,665.60 : x
  2. Step 2: Convert to fraction form
    518,062.40/776,863.20 = 237,665.60/x
  3. Step 3: Cross multiply
    518,062.40x = 776,863.20 × 237,665.60
  4. Step 4: Simplify right side
    518,062.40x = 184,633,658,545.92
  5. Step 5: Solve for x
    x = 184,633,658,545.92/518,062.40
  6. Step 6: Final answer
    x = 356,392.70

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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.