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Finding the Fourth Proportional to 341,421.80, 512,171.10 and 104,762.60

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Solution

The fourth proportional to 341,421.80, 512,171.10 and 104,762.60 is: 157,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,421.80 : 512,171.10 = 104,762.60 : x
  2. Step 2: Convert to fraction form
    341,421.80/512,171.10 = 104,762.60/x
  3. Step 3: Cross multiply
    341,421.80x = 512,171.10 × 104,762.60
  4. Step 4: Simplify right side
    341,421.80x = 53,656,376,080.86
  5. Step 5: Solve for x
    x = 53,656,376,080.86/341,421.80
  6. Step 6: Final answer
    x = 157,155.68

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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.