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Finding the Fourth Proportional to 370,123.49, 555,189.80 and 130,244.56

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Solution

The fourth proportional to 370,123.49, 555,189.80 and 130,244.56 is: 195,368.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,123.49 : 555,189.80 = 130,244.56 : x
  2. Step 2: Convert to fraction form
    370,123.49/555,189.80 = 130,244.56/x
  3. Step 3: Cross multiply
    370,123.49x = 555,189.80 × 130,244.56
  4. Step 4: Simplify right side
    370,123.49x = 72,310,449,178.29
  5. Step 5: Solve for x
    x = 72,310,449,178.29/370,123.49
  6. Step 6: Final answer
    x = 195,368.44

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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.