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Finding the Fourth Proportional to 163,552.20, 245,328.30 and 84,820.20

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Solution

The fourth proportional to 163,552.20, 245,328.30 and 84,820.20 is: 127,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,552.20 : 245,328.30 = 84,820.20 : x
  2. Step 2: Convert to fraction form
    163,552.20/245,328.30 = 84,820.20/x
  3. Step 3: Cross multiply
    163,552.20x = 245,328.30 × 84,820.20
  4. Step 4: Simplify right side
    163,552.20x = 20,808,795,471.66
  5. Step 5: Solve for x
    x = 20,808,795,471.66/163,552.20
  6. Step 6: Final answer
    x = 127,230.30

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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.