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Finding the Fourth Proportional to 165,602.40, 248,403.60 and 153,938.40

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Solution

The fourth proportional to 165,602.40, 248,403.60 and 153,938.40 is: 230,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,602.40 : 248,403.60 = 153,938.40 : x
  2. Step 2: Convert to fraction form
    165,602.40/248,403.60 = 153,938.40/x
  3. Step 3: Cross multiply
    165,602.40x = 248,403.60 × 153,938.40
  4. Step 4: Simplify right side
    165,602.40x = 38,238,852,738.24
  5. Step 5: Solve for x
    x = 38,238,852,738.24/165,602.40
  6. Step 6: Final answer
    x = 230,907.60

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1.5x scale

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.