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Finding the Fourth Proportional to 369,710.60, 554,564.10 and 144,912.20

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Solution

The fourth proportional to 369,710.60, 554,564.10 and 144,912.20 is: 217,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,710.60 : 554,564.10 = 144,912.20 : x
  2. Step 2: Convert to fraction form
    369,710.60/554,564.10 = 144,912.20/x
  3. Step 3: Cross multiply
    369,710.60x = 554,564.10 × 144,912.20
  4. Step 4: Simplify right side
    369,710.60x = 80,363,103,772.02
  5. Step 5: Solve for x
    x = 80,363,103,772.02/369,710.60
  6. Step 6: Final answer
    x = 217,367.59

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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.