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Finding the Fourth Proportional to 369,624.40, 554,047.80 and 211,512.40

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Solution

The fourth proportional to 369,624.40, 554,047.80 and 211,512.40 is: 317,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,624.40 : 554,047.80 = 211,512.40 : x
  2. Step 2: Convert to fraction form
    369,624.40/554,047.80 = 211,512.40/x
  3. Step 3: Cross multiply
    369,624.40x = 554,047.80 × 211,512.40
  4. Step 4: Simplify right side
    369,624.40x = 117,187,979,892.72
  5. Step 5: Solve for x
    x = 117,187,979,892.72/369,624.40
  6. Step 6: Final answer
    x = 317,046.11

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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.