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Finding the Fourth Proportional to 370,333.60, 555,500.40 and 121,040.80

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Solution

The fourth proportional to 370,333.60, 555,500.40 and 121,040.80 is: 181,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,333.60 : 555,500.40 = 121,040.80 : x
  2. Step 2: Convert to fraction form
    370,333.60/555,500.40 = 121,040.80/x
  3. Step 3: Cross multiply
    370,333.60x = 555,500.40 × 121,040.80
  4. Step 4: Simplify right side
    370,333.60x = 67,238,212,816.32
  5. Step 5: Solve for x
    x = 67,238,212,816.32/370,333.60
  6. Step 6: Final answer
    x = 181,561.20

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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.