Home / 438,419.60-657,629.40-202,223.60

Finding the Fourth Proportional to 438,419.60, 657,629.40 and 202,223.60

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Solution

The fourth proportional to 438,419.60, 657,629.40 and 202,223.60 is: 303,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,419.60 : 657,629.40 = 202,223.60 : x
  2. Step 2: Convert to fraction form
    438,419.60/657,629.40 = 202,223.60/x
  3. Step 3: Cross multiply
    438,419.60x = 657,629.40 × 202,223.60
  4. Step 4: Simplify right side
    438,419.60x = 132,988,184,733.84
  5. Step 5: Solve for x
    x = 132,988,184,733.84/438,419.60
  6. Step 6: Final answer
    x = 303,335.40

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Similar ratio
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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.