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Finding the Fourth Proportional to 370,125, 555,192.05 and 130,246.07

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Solution

The fourth proportional to 370,125, 555,192.05 and 130,246.07 is: 195,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,125 : 555,192.05 = 130,246.07 : x
  2. Step 2: Convert to fraction form
    370,125/555,192.05 = 130,246.07/x
  3. Step 3: Cross multiply
    370,125x = 555,192.05 × 130,246.07
  4. Step 4: Simplify right side
    370,125x = 72,311,579,180.55
  5. Step 5: Solve for x
    x = 72,311,579,180.55/370,125
  6. Step 6: Final answer
    x = 195,370.70

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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.