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Finding the Fourth Proportional to 163,530.40, 245,295.60 and 51,219.40

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Solution

The fourth proportional to 163,530.40, 245,295.60 and 51,219.40 is: 76,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,530.40 : 245,295.60 = 51,219.40 : x
  2. Step 2: Convert to fraction form
    163,530.40/245,295.60 = 51,219.40/x
  3. Step 3: Cross multiply
    163,530.40x = 245,295.60 × 51,219.40
  4. Step 4: Simplify right side
    163,530.40x = 12,563,893,454.64
  5. Step 5: Solve for x
    x = 12,563,893,454.64/163,530.40
  6. Step 6: Final answer
    x = 76,829.10

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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.