Home / 289,043.10-432,908.55-148,637.70

Finding the Fourth Proportional to 289,043.10, 432,908.55 and 148,637.70

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Solution

The fourth proportional to 289,043.10, 432,908.55 and 148,637.70 is: 222,619.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,043.10 : 432,908.55 = 148,637.70 : x
  2. Step 2: Convert to fraction form
    289,043.10/432,908.55 = 148,637.70/x
  3. Step 3: Cross multiply
    289,043.10x = 432,908.55 × 148,637.70
  4. Step 4: Simplify right side
    289,043.10x = 64,346,531,182.34
  5. Step 5: Solve for x
    x = 64,346,531,182.34/289,043.10
  6. Step 6: Final answer
    x = 222,619.16

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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.