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Finding the Fourth Proportional to 446,305.80, 615,900 and 242,355.06

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Solution

The fourth proportional to 446,305.80, 615,900 and 242,355.06 is: 334,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,305.80 : 615,900 = 242,355.06 : x
  2. Step 2: Convert to fraction form
    446,305.80/615,900 = 242,355.06/x
  3. Step 3: Cross multiply
    446,305.80x = 615,900 × 242,355.06
  4. Step 4: Simplify right side
    446,305.80x = 149,266,481,454
  5. Step 5: Solve for x
    x = 149,266,481,454/446,305.80
  6. Step 6: Final answer
    x = 334,448.89

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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.