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Finding the Fourth Proportional to 370,279.58, 510,634.80 and 255,374.60

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Solution

The fourth proportional to 370,279.58, 510,634.80 and 255,374.60 is: 352,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,279.58 : 510,634.80 = 255,374.60 : x
  2. Step 2: Convert to fraction form
    370,279.58/510,634.80 = 255,374.60/x
  3. Step 3: Cross multiply
    370,279.58x = 510,634.80 × 255,374.60
  4. Step 4: Simplify right side
    370,279.58x = 130,403,155,242.91
  5. Step 5: Solve for x
    x = 130,403,155,242.91/370,279.58
  6. Step 6: Final answer
    x = 352,174.85

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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.