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Finding the Fourth Proportional to 275,462.16, 380,140.76 and 152,962.64

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Solution

The fourth proportional to 275,462.16, 380,140.76 and 152,962.64 is: 211,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,462.16 : 380,140.76 = 152,962.64 : x
  2. Step 2: Convert to fraction form
    275,462.16/380,140.76 = 152,962.64/x
  3. Step 3: Cross multiply
    275,462.16x = 380,140.76 × 152,962.64
  4. Step 4: Simplify right side
    275,462.16x = 58,147,334,221.21
  5. Step 5: Solve for x
    x = 58,147,334,221.21/275,462.16
  6. Step 6: Final answer
    x = 211,090.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.