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Finding the Fourth Proportional to 163,935.20, 245,902.80 and 161,602.40

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Solution

The fourth proportional to 163,935.20, 245,902.80 and 161,602.40 is: 242,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,935.20 : 245,902.80 = 161,602.40 : x
  2. Step 2: Convert to fraction form
    163,935.20/245,902.80 = 161,602.40/x
  3. Step 3: Cross multiply
    163,935.20x = 245,902.80 × 161,602.40
  4. Step 4: Simplify right side
    163,935.20x = 39,738,482,646.72
  5. Step 5: Solve for x
    x = 39,738,482,646.72/163,935.20
  6. Step 6: Final answer
    x = 242,403.60

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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.