Home / 305,133.75-457,700.63-118,145.25

Finding the Fourth Proportional to 305,133.75, 457,700.63 and 118,145.25

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Solution

The fourth proportional to 305,133.75, 457,700.63 and 118,145.25 is: 177,217.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,133.75 : 457,700.63 = 118,145.25 : x
  2. Step 2: Convert to fraction form
    305,133.75/457,700.63 = 118,145.25/x
  3. Step 3: Cross multiply
    305,133.75x = 457,700.63 × 118,145.25
  4. Step 4: Simplify right side
    305,133.75x = 54,075,154,765.78
  5. Step 5: Solve for x
    x = 54,075,154,765.78/305,133.75
  6. Step 6: Final answer
    x = 177,217.88

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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.