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Finding the Fourth Proportional to 507,469.64, 761,216.78 and 170,515.12

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Solution

The fourth proportional to 507,469.64, 761,216.78 and 170,515.12 is: 255,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,469.64 : 761,216.78 = 170,515.12 : x
  2. Step 2: Convert to fraction form
    507,469.64/761,216.78 = 170,515.12/x
  3. Step 3: Cross multiply
    507,469.64x = 761,216.78 × 170,515.12
  4. Step 4: Simplify right side
    507,469.64x = 129,798,970,587.71
  5. Step 5: Solve for x
    x = 129,798,970,587.71/507,469.64
  6. Step 6: Final answer
    x = 255,776.82

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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.