Home / 421,101.59-581,179.46-268,090.90

Finding the Fourth Proportional to 421,101.59, 581,179.46 and 268,090.90

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Solution

The fourth proportional to 421,101.59, 581,179.46 and 268,090.90 is: 370,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,101.59 : 581,179.46 = 268,090.90 : x
  2. Step 2: Convert to fraction form
    421,101.59/581,179.46 = 268,090.90/x
  3. Step 3: Cross multiply
    421,101.59x = 581,179.46 × 268,090.90
  4. Step 4: Simplify right side
    421,101.59x = 155,808,921,699.51
  5. Step 5: Solve for x
    x = 155,808,921,699.51/421,101.59
  6. Step 6: Final answer
    x = 370,003.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.