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Finding the Fourth Proportional to 370,297.76, 510,727.40 and 255,768.07

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Solution

The fourth proportional to 370,297.76, 510,727.40 and 255,768.07 is: 352,764.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,297.76 : 510,727.40 = 255,768.07 : x
  2. Step 2: Convert to fraction form
    370,297.76/510,727.40 = 255,768.07/x
  3. Step 3: Cross multiply
    370,297.76x = 510,727.40 × 255,768.07
  4. Step 4: Simplify right side
    370,297.76x = 130,627,761,394.12
  5. Step 5: Solve for x
    x = 130,627,761,394.12/370,297.76
  6. Step 6: Final answer
    x = 352,764.11

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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.