Home / 438,314.20-657,492.90-228,362.20

Finding the Fourth Proportional to 438,314.20, 657,492.90 and 228,362.20

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Solution

The fourth proportional to 438,314.20, 657,492.90 and 228,362.20 is: 342,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,314.20 : 657,492.90 = 228,362.20 : x
  2. Step 2: Convert to fraction form
    438,314.20/657,492.90 = 228,362.20/x
  3. Step 3: Cross multiply
    438,314.20x = 657,492.90 × 228,362.20
  4. Step 4: Simplify right side
    438,314.20x = 150,146,525,128.38
  5. Step 5: Solve for x
    x = 150,146,525,128.38/438,314.20
  6. Step 6: Final answer
    x = 342,554.55

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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.