Home / 468,189.12-646,099.20-253,329.60

Finding the Fourth Proportional to 468,189.12, 646,099.20 and 253,329.60

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Solution

The fourth proportional to 468,189.12, 646,099.20 and 253,329.60 is: 349,593.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,189.12 : 646,099.20 = 253,329.60 : x
  2. Step 2: Convert to fraction form
    468,189.12/646,099.20 = 253,329.60/x
  3. Step 3: Cross multiply
    468,189.12x = 646,099.20 × 253,329.60
  4. Step 4: Simplify right side
    468,189.12x = 163,676,051,896.32
  5. Step 5: Solve for x
    x = 163,676,051,896.32/468,189.12
  6. Step 6: Final answer
    x = 349,593.88

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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.