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Finding the Fourth Proportional to 369,606.88, 554,352.72 and 120,287.20

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Solution

The fourth proportional to 369,606.88, 554,352.72 and 120,287.20 is: 180,412.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,606.88 : 554,352.72 = 120,287.20 : x
  2. Step 2: Convert to fraction form
    369,606.88/554,352.72 = 120,287.20/x
  3. Step 3: Cross multiply
    369,606.88x = 554,352.72 × 120,287.20
  4. Step 4: Simplify right side
    369,606.88x = 66,681,536,501.18
  5. Step 5: Solve for x
    x = 66,681,536,501.18/369,606.88
  6. Step 6: Final answer
    x = 180,412.05

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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.