Home / 421,716.48-581,986.08-230,746.56

Finding the Fourth Proportional to 421,716.48, 581,986.08 and 230,746.56

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Solution

The fourth proportional to 421,716.48, 581,986.08 and 230,746.56 is: 318,439.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,716.48 : 581,986.08 = 230,746.56 : x
  2. Step 2: Convert to fraction form
    421,716.48/581,986.08 = 230,746.56/x
  3. Step 3: Cross multiply
    421,716.48x = 581,986.08 × 230,746.56
  4. Step 4: Simplify right side
    421,716.48x = 134,291,285,927.89
  5. Step 5: Solve for x
    x = 134,291,285,927.89/421,716.48
  6. Step 6: Final answer
    x = 318,439.74

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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.