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Finding the Fourth Proportional to 360,642.80, 539,927.40 and 220,674.80

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Solution

The fourth proportional to 360,642.80, 539,927.40 and 220,674.80 is: 330,377.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,642.80 : 539,927.40 = 220,674.80 : x
  2. Step 2: Convert to fraction form
    360,642.80/539,927.40 = 220,674.80/x
  3. Step 3: Cross multiply
    360,642.80x = 539,927.40 × 220,674.80
  4. Step 4: Simplify right side
    360,642.80x = 119,148,371,009.52
  5. Step 5: Solve for x
    x = 119,148,371,009.52/360,642.80
  6. Step 6: Final answer
    x = 330,377.79

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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.