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Finding the Fourth Proportional to 370,256.10, 555,384.15 and 341,387.70

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Solution

The fourth proportional to 370,256.10, 555,384.15 and 341,387.70 is: 512,081.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,256.10 : 555,384.15 = 341,387.70 : x
  2. Step 2: Convert to fraction form
    370,256.10/555,384.15 = 341,387.70/x
  3. Step 3: Cross multiply
    370,256.10x = 555,384.15 × 341,387.70
  4. Step 4: Simplify right side
    370,256.10x = 189,601,317,584.96
  5. Step 5: Solve for x
    x = 189,601,317,584.96/370,256.10
  6. Step 6: Final answer
    x = 512,081.55

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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.