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Finding the Fourth Proportional to 452,274.80, 678,510.61 and 136,723.50

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Solution

The fourth proportional to 452,274.80, 678,510.61 and 136,723.50 is: 205,115.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,274.80 : 678,510.61 = 136,723.50 : x
  2. Step 2: Convert to fraction form
    452,274.80/678,510.61 = 136,723.50/x
  3. Step 3: Cross multiply
    452,274.80x = 678,510.61 × 136,723.50
  4. Step 4: Simplify right side
    452,274.80x = 92,768,345,044.53
  5. Step 5: Solve for x
    x = 92,768,345,044.53/452,274.80
  6. Step 6: Final answer
    x = 205,115.00

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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.