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Finding the Fourth Proportional to 539,091.40, 808,491.30 and 160,011.40

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Solution

The fourth proportional to 539,091.40, 808,491.30 and 160,011.40 is: 239,973.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,091.40 : 808,491.30 = 160,011.40 : x
  2. Step 2: Convert to fraction form
    539,091.40/808,491.30 = 160,011.40/x
  3. Step 3: Cross multiply
    539,091.40x = 808,491.30 × 160,011.40
  4. Step 4: Simplify right side
    539,091.40x = 129,367,824,800.82
  5. Step 5: Solve for x
    x = 129,367,824,800.82/539,091.40
  6. Step 6: Final answer
    x = 239,973.82

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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.