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Finding the Fourth Proportional to 163,396.40, 245,094.60 and 137,152.40

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Solution

The fourth proportional to 163,396.40, 245,094.60 and 137,152.40 is: 205,728.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,396.40 : 245,094.60 = 137,152.40 : x
  2. Step 2: Convert to fraction form
    163,396.40/245,094.60 = 137,152.40/x
  3. Step 3: Cross multiply
    163,396.40x = 245,094.60 × 137,152.40
  4. Step 4: Simplify right side
    163,396.40x = 33,615,312,617.04
  5. Step 5: Solve for x
    x = 33,615,312,617.04/163,396.40
  6. Step 6: Final answer
    x = 205,728.60

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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.