Home / 438,741.20-657,674.40-201,670.40

Finding the Fourth Proportional to 438,741.20, 657,674.40 and 201,670.40

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Solution

The fourth proportional to 438,741.20, 657,674.40 and 201,670.40 is: 302,304.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,741.20 : 657,674.40 = 201,670.40 : x
  2. Step 2: Convert to fraction form
    438,741.20/657,674.40 = 201,670.40/x
  3. Step 3: Cross multiply
    438,741.20x = 657,674.40 × 201,670.40
  4. Step 4: Simplify right side
    438,741.20x = 132,633,459,317.76
  5. Step 5: Solve for x
    x = 132,633,459,317.76/438,741.20
  6. Step 6: Final answer
    x = 302,304.55

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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.