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Finding the Fourth Proportional to 369,401.28, 553,879.98 and 144,493.44

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Solution

The fourth proportional to 369,401.28, 553,879.98 and 144,493.44 is: 216,653.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,401.28 : 553,879.98 = 144,493.44 : x
  2. Step 2: Convert to fraction form
    369,401.28/553,879.98 = 144,493.44/x
  3. Step 3: Cross multiply
    369,401.28x = 553,879.98 × 144,493.44
  4. Step 4: Simplify right side
    369,401.28x = 80,032,023,657.33
  5. Step 5: Solve for x
    x = 80,032,023,657.33/369,401.28
  6. Step 6: Final answer
    x = 216,653.35

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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.