Home / 421,686.72-581,917.69-230,701.68

Finding the Fourth Proportional to 421,686.72, 581,917.69 and 230,701.68

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Solution

The fourth proportional to 421,686.72, 581,917.69 and 230,701.68 is: 318,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,686.72 : 581,917.69 = 230,701.68 : x
  2. Step 2: Convert to fraction form
    421,686.72/581,917.69 = 230,701.68/x
  3. Step 3: Cross multiply
    421,686.72x = 581,917.69 × 230,701.68
  4. Step 4: Simplify right side
    421,686.72x = 134,249,384,641.62
  5. Step 5: Solve for x
    x = 134,249,384,641.62/421,686.72
  6. Step 6: Final answer
    x = 318,362.85

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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.