Home / 275,013.04-379,535.52-154,154.35

Finding the Fourth Proportional to 275,013.04, 379,535.52 and 154,154.35

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Solution

The fourth proportional to 275,013.04, 379,535.52 and 154,154.35 is: 212,742.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,013.04 : 379,535.52 = 154,154.35 : x
  2. Step 2: Convert to fraction form
    275,013.04/379,535.52 = 154,154.35/x
  3. Step 3: Cross multiply
    275,013.04x = 379,535.52 × 154,154.35
  4. Step 4: Simplify right side
    275,013.04x = 58,507,051,387.51
  5. Step 5: Solve for x
    x = 58,507,051,387.51/275,013.04
  6. Step 6: Final answer
    x = 212,742.83

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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.