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Finding the Fourth Proportional to 369,935.40, 554,903.10 and 120,617.40

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Solution

The fourth proportional to 369,935.40, 554,903.10 and 120,617.40 is: 180,926.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,935.40 : 554,903.10 = 120,617.40 : x
  2. Step 2: Convert to fraction form
    369,935.40/554,903.10 = 120,617.40/x
  3. Step 3: Cross multiply
    369,935.40x = 554,903.10 × 120,617.40
  4. Step 4: Simplify right side
    369,935.40x = 66,930,969,173.94
  5. Step 5: Solve for x
    x = 66,930,969,173.94/369,935.40
  6. Step 6: Final answer
    x = 180,926.10

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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.