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Finding the Fourth Proportional to 163,872.40, 245,371.20 and 163,872.40

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Solution

The fourth proportional to 163,872.40, 245,371.20 and 163,872.40 is: 245,371.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,872.40 : 245,371.20 = 163,872.40 : x
  2. Step 2: Convert to fraction form
    163,872.40/245,371.20 = 163,872.40/x
  3. Step 3: Cross multiply
    163,872.40x = 245,371.20 × 163,872.40
  4. Step 4: Simplify right side
    163,872.40x = 40,209,567,434.88
  5. Step 5: Solve for x
    x = 40,209,567,434.88/163,872.40
  6. Step 6: Final answer
    x = 245,371.20

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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.