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Finding the Fourth Proportional to 360,011.28, 539,710.74 and 219,868.32

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Solution

The fourth proportional to 360,011.28, 539,710.74 and 219,868.32 is: 329,615.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,011.28 : 539,710.74 = 219,868.32 : x
  2. Step 2: Convert to fraction form
    360,011.28/539,710.74 = 219,868.32/x
  3. Step 3: Cross multiply
    360,011.28x = 539,710.74 × 219,868.32
  4. Step 4: Simplify right side
    360,011.28x = 118,665,293,689.76
  5. Step 5: Solve for x
    x = 118,665,293,689.76/360,011.28
  6. Step 6: Final answer
    x = 329,615.49

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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.