Home / 421,582.78-581,777.40-230,594.50

Finding the Fourth Proportional to 421,582.78, 581,777.40 and 230,594.50

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Solution

The fourth proportional to 421,582.78, 581,777.40 and 230,594.50 is: 318,216.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,582.78 : 581,777.40 = 230,594.50 : x
  2. Step 2: Convert to fraction form
    421,582.78/581,777.40 = 230,594.50/x
  3. Step 3: Cross multiply
    421,582.78x = 581,777.40 × 230,594.50
  4. Step 4: Simplify right side
    421,582.78x = 134,154,668,664.30
  5. Step 5: Solve for x
    x = 134,154,668,664.30/421,582.78
  6. Step 6: Final answer
    x = 318,216.67

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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.