Home / 257,615.48-355,442.10-148,693.16

Finding the Fourth Proportional to 257,615.48, 355,442.10 and 148,693.16

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Solution

The fourth proportional to 257,615.48, 355,442.10 and 148,693.16 is: 205,157.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,615.48 : 355,442.10 = 148,693.16 : x
  2. Step 2: Convert to fraction form
    257,615.48/355,442.10 = 148,693.16/x
  3. Step 3: Cross multiply
    257,615.48x = 355,442.10 × 148,693.16
  4. Step 4: Simplify right side
    257,615.48x = 52,851,809,046.04
  5. Step 5: Solve for x
    x = 52,851,809,046.04/257,615.48
  6. Step 6: Final answer
    x = 205,157.74

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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.