Home / 347,809.16-521,788.55-107,918.25

Finding the Fourth Proportional to 347,809.16, 521,788.55 and 107,918.25

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Solution

The fourth proportional to 347,809.16, 521,788.55 and 107,918.25 is: 161,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,809.16 : 521,788.55 = 107,918.25 : x
  2. Step 2: Convert to fraction form
    347,809.16/521,788.55 = 107,918.25/x
  3. Step 3: Cross multiply
    347,809.16x = 521,788.55 × 107,918.25
  4. Step 4: Simplify right side
    347,809.16x = 56,310,506,646.45
  5. Step 5: Solve for x
    x = 56,310,506,646.45/347,809.16
  6. Step 6: Final answer
    x = 161,900.59

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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.