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Finding the Fourth Proportional to 370,340, 510,928.26 and 273,775.70

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Solution

The fourth proportional to 370,340, 510,928.26 and 273,775.70 is: 377,706.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,340 : 510,928.26 = 273,775.70 : x
  2. Step 2: Convert to fraction form
    370,340/510,928.26 = 273,775.70/x
  3. Step 3: Cross multiply
    370,340x = 510,928.26 × 273,775.70
  4. Step 4: Simplify right side
    370,340x = 139,879,742,031.28
  5. Step 5: Solve for x
    x = 139,879,742,031.28/370,340
  6. Step 6: Final answer
    x = 377,706.28

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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.