Home / 438,426.30-657,639.45-202,230.30

Finding the Fourth Proportional to 438,426.30, 657,639.45 and 202,230.30

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Solution

The fourth proportional to 438,426.30, 657,639.45 and 202,230.30 is: 303,345.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,426.30 : 657,639.45 = 202,230.30 : x
  2. Step 2: Convert to fraction form
    438,426.30/657,639.45 = 202,230.30/x
  3. Step 3: Cross multiply
    438,426.30x = 657,639.45 × 202,230.30
  4. Step 4: Simplify right side
    438,426.30x = 132,994,623,265.34
  5. Step 5: Solve for x
    x = 132,994,623,265.34/438,426.30
  6. Step 6: Final answer
    x = 303,345.45

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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.