Home / 438,038.20-656,798.10-228,086.20

Finding the Fourth Proportional to 438,038.20, 656,798.10 and 228,086.20

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Solution

The fourth proportional to 438,038.20, 656,798.10 and 228,086.20 is: 341,994.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,038.20 : 656,798.10 = 228,086.20 : x
  2. Step 2: Convert to fraction form
    438,038.20/656,798.10 = 228,086.20/x
  3. Step 3: Cross multiply
    438,038.20x = 656,798.10 × 228,086.20
  4. Step 4: Simplify right side
    438,038.20x = 149,806,582,796.22
  5. Step 5: Solve for x
    x = 149,806,582,796.22/438,038.20
  6. Step 6: Final answer
    x = 341,994.33

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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.