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Finding the Fourth Proportional to 349,837.60, 525,015.60 and 256,525.60

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Solution

The fourth proportional to 349,837.60, 525,015.60 and 256,525.60 is: 384,978.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,837.60 : 525,015.60 = 256,525.60 : x
  2. Step 2: Convert to fraction form
    349,837.60/525,015.60 = 256,525.60/x
  3. Step 3: Cross multiply
    349,837.60x = 525,015.60 × 256,525.60
  4. Step 4: Simplify right side
    349,837.60x = 134,679,941,799.36
  5. Step 5: Solve for x
    x = 134,679,941,799.36/349,837.60
  6. Step 6: Final answer
    x = 384,978.46

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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.