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Finding the Fourth Proportional to 402,355.80, 555,299.28 and 241,299.45

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Solution

The fourth proportional to 402,355.80, 555,299.28 and 241,299.45 is: 333,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,355.80 : 555,299.28 = 241,299.45 : x
  2. Step 2: Convert to fraction form
    402,355.80/555,299.28 = 241,299.45/x
  3. Step 3: Cross multiply
    402,355.80x = 555,299.28 × 241,299.45
  4. Step 4: Simplify right side
    402,355.80x = 133,993,410,849.40
  5. Step 5: Solve for x
    x = 133,993,410,849.40/402,355.80
  6. Step 6: Final answer
    x = 333,022.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.