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Finding the Fourth Proportional to 275,746.80, 413,620.20 and 157,430.10

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Solution

The fourth proportional to 275,746.80, 413,620.20 and 157,430.10 is: 236,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,746.80 : 413,620.20 = 157,430.10 : x
  2. Step 2: Convert to fraction form
    275,746.80/413,620.20 = 157,430.10/x
  3. Step 3: Cross multiply
    275,746.80x = 413,620.20 × 157,430.10
  4. Step 4: Simplify right side
    275,746.80x = 65,116,269,448.02
  5. Step 5: Solve for x
    x = 65,116,269,448.02/275,746.80
  6. Step 6: Final answer
    x = 236,145.15

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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.