Home / 421,272.77-581,356.67-230,286.20

Finding the Fourth Proportional to 421,272.77, 581,356.67 and 230,286.20

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Solution

The fourth proportional to 421,272.77, 581,356.67 and 230,286.20 is: 317,795.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,272.77 : 581,356.67 = 230,286.20 : x
  2. Step 2: Convert to fraction form
    421,272.77/581,356.67 = 230,286.20/x
  3. Step 3: Cross multiply
    421,272.77x = 581,356.67 × 230,286.20
  4. Step 4: Simplify right side
    421,272.77x = 133,878,414,320.74
  5. Step 5: Solve for x
    x = 133,878,414,320.74/421,272.77
  6. Step 6: Final answer
    x = 317,795.09

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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.