Home / 495,021.55-742,844.68-210,711.65

Finding the Fourth Proportional to 495,021.55, 742,844.68 and 210,711.65

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Solution

The fourth proportional to 495,021.55, 742,844.68 and 210,711.65 is: 316,200.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,021.55 : 742,844.68 = 210,711.65 : x
  2. Step 2: Convert to fraction form
    495,021.55/742,844.68 = 210,711.65/x
  3. Step 3: Cross multiply
    495,021.55x = 742,844.68 × 210,711.65
  4. Step 4: Simplify right side
    495,021.55x = 156,526,027,024.02
  5. Step 5: Solve for x
    x = 156,526,027,024.02/495,021.55
  6. Step 6: Final answer
    x = 316,200.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.