Home / 287,184.62-430,777.05-129,228.56

Finding the Fourth Proportional to 287,184.62, 430,777.05 and 129,228.56

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Solution

The fourth proportional to 287,184.62, 430,777.05 and 129,228.56 is: 193,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,184.62 : 430,777.05 = 129,228.56 : x
  2. Step 2: Convert to fraction form
    287,184.62/430,777.05 = 129,228.56/x
  3. Step 3: Cross multiply
    287,184.62x = 430,777.05 × 129,228.56
  4. Step 4: Simplify right side
    287,184.62x = 55,668,697,852.55
  5. Step 5: Solve for x
    x = 55,668,697,852.55/287,184.62
  6. Step 6: Final answer
    x = 193,842.89

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1.5x scale

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.