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Finding the Fourth Proportional to 163,542.80, 245,314.20 and 153,693.20

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Solution

The fourth proportional to 163,542.80, 245,314.20 and 153,693.20 is: 230,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,542.80 : 245,314.20 = 153,693.20 : x
  2. Step 2: Convert to fraction form
    163,542.80/245,314.20 = 153,693.20/x
  3. Step 3: Cross multiply
    163,542.80x = 245,314.20 × 153,693.20
  4. Step 4: Simplify right side
    163,542.80x = 37,703,124,403.44
  5. Step 5: Solve for x
    x = 37,703,124,403.44/163,542.80
  6. Step 6: Final answer
    x = 230,539.80

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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.