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Finding the Fourth Proportional to 360,507.71, 539,974.25 and 297,128.45

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Solution

The fourth proportional to 360,507.71, 539,974.25 and 297,128.45 is: 445,043.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,507.71 : 539,974.25 = 297,128.45 : x
  2. Step 2: Convert to fraction form
    360,507.71/539,974.25 = 297,128.45/x
  3. Step 3: Cross multiply
    360,507.71x = 539,974.25 × 297,128.45
  4. Step 4: Simplify right side
    360,507.71x = 160,441,712,920.94
  5. Step 5: Solve for x
    x = 160,441,712,920.94/360,507.71
  6. Step 6: Final answer
    x = 445,043.77

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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.