Home / 313,965.18-434,412.88-273,762.72

Finding the Fourth Proportional to 313,965.18, 434,412.88 and 273,762.72

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Solution

The fourth proportional to 313,965.18, 434,412.88 and 273,762.72 is: 378,787.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,965.18 : 434,412.88 = 273,762.72 : x
  2. Step 2: Convert to fraction form
    313,965.18/434,412.88 = 273,762.72/x
  3. Step 3: Cross multiply
    313,965.18x = 434,412.88 × 273,762.72
  4. Step 4: Simplify right side
    313,965.18x = 118,926,051,631.83
  5. Step 5: Solve for x
    x = 118,926,051,631.83/313,965.18
  6. Step 6: Final answer
    x = 378,787.39

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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.