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Finding the Fourth Proportional to 338,878.08, 508,152.90 and 102,176.64

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Solution

The fourth proportional to 338,878.08, 508,152.90 and 102,176.64 is: 153,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,878.08 : 508,152.90 = 102,176.64 : x
  2. Step 2: Convert to fraction form
    338,878.08/508,152.90 = 102,176.64/x
  3. Step 3: Cross multiply
    338,878.08x = 508,152.90 × 102,176.64
  4. Step 4: Simplify right side
    338,878.08x = 51,921,355,928.26
  5. Step 5: Solve for x
    x = 51,921,355,928.26/338,878.08
  6. Step 6: Final answer
    x = 153,215.45

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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.