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Finding the Fourth Proportional to 491,223.76, 736,835.58 and 136,237.76

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Solution

The fourth proportional to 491,223.76, 736,835.58 and 136,237.76 is: 204,356.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,223.76 : 736,835.58 = 136,237.76 : x
  2. Step 2: Convert to fraction form
    491,223.76/736,835.58 = 136,237.76/x
  3. Step 3: Cross multiply
    491,223.76x = 736,835.58 × 136,237.76
  4. Step 4: Simplify right side
    491,223.76x = 100,384,828,907.50
  5. Step 5: Solve for x
    x = 100,384,828,907.50/491,223.76
  6. Step 6: Final answer
    x = 204,356.62

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1.5x scale

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.