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Finding the Fourth Proportional to 257,809.62, 355,697.55 and 150,303.60

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Solution

The fourth proportional to 257,809.62, 355,697.55 and 150,303.60 is: 207,372.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,809.62 : 355,697.55 = 150,303.60 : x
  2. Step 2: Convert to fraction form
    257,809.62/355,697.55 = 150,303.60/x
  3. Step 3: Cross multiply
    257,809.62x = 355,697.55 × 150,303.60
  4. Step 4: Simplify right side
    257,809.62x = 53,462,622,276.18
  5. Step 5: Solve for x
    x = 53,462,622,276.18/257,809.62
  6. Step 6: Final answer
    x = 207,372.49

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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.