Home / 421,219.37-581,283.05-230,232.77

Finding the Fourth Proportional to 421,219.37, 581,283.05 and 230,232.77

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Solution

The fourth proportional to 421,219.37, 581,283.05 and 230,232.77 is: 317,721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,219.37 : 581,283.05 = 230,232.77 : x
  2. Step 2: Convert to fraction form
    421,219.37/581,283.05 = 230,232.77/x
  3. Step 3: Cross multiply
    421,219.37x = 581,283.05 × 230,232.77
  4. Step 4: Simplify right side
    421,219.37x = 133,830,404,877.78
  5. Step 5: Solve for x
    x = 133,830,404,877.78/421,219.37
  6. Step 6: Final answer
    x = 317,721.39

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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.