Home / 253,374.12-379,534.64-120,359.16

Finding the Fourth Proportional to 253,374.12, 379,534.64 and 120,359.16

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Solution

The fourth proportional to 253,374.12, 379,534.64 and 120,359.16 is: 180,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,374.12 : 379,534.64 = 120,359.16 : x
  2. Step 2: Convert to fraction form
    253,374.12/379,534.64 = 120,359.16/x
  3. Step 3: Cross multiply
    253,374.12x = 379,534.64 × 120,359.16
  4. Step 4: Simplify right side
    253,374.12x = 45,680,470,461.30
  5. Step 5: Solve for x
    x = 45,680,470,461.30/253,374.12
  6. Step 6: Final answer
    x = 180,288.62

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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.