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Finding the Fourth Proportional to 369,166.80, 553,312.80 and 331,550.40

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Solution

The fourth proportional to 369,166.80, 553,312.80 and 331,550.40 is: 496,932.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,166.80 : 553,312.80 = 331,550.40 : x
  2. Step 2: Convert to fraction form
    369,166.80/553,312.80 = 331,550.40/x
  3. Step 3: Cross multiply
    369,166.80x = 553,312.80 × 331,550.40
  4. Step 4: Simplify right side
    369,166.80x = 183,451,080,165.12
  5. Step 5: Solve for x
    x = 183,451,080,165.12/369,166.80
  6. Step 6: Final answer
    x = 496,932.77

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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.