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Finding the Fourth Proportional to 370,359.60, 555,409.80 and 192,807.60

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Solution

The fourth proportional to 370,359.60, 555,409.80 and 192,807.60 is: 289,143.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,359.60 : 555,409.80 = 192,807.60 : x
  2. Step 2: Convert to fraction form
    370,359.60/555,409.80 = 192,807.60/x
  3. Step 3: Cross multiply
    370,359.60x = 555,409.80 × 192,807.60
  4. Step 4: Simplify right side
    370,359.60x = 107,087,230,554.48
  5. Step 5: Solve for x
    x = 107,087,230,554.48/370,359.60
  6. Step 6: Final answer
    x = 289,143.93

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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.