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Finding the Fourth Proportional to 285,266.80, 427,200.36 and 191,488.24

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Solution

The fourth proportional to 285,266.80, 427,200.36 and 191,488.24 is: 286,762.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,266.80 : 427,200.36 = 191,488.24 : x
  2. Step 2: Convert to fraction form
    285,266.80/427,200.36 = 191,488.24/x
  3. Step 3: Cross multiply
    285,266.80x = 427,200.36 × 191,488.24
  4. Step 4: Simplify right side
    285,266.80x = 81,803,845,063.77
  5. Step 5: Solve for x
    x = 81,803,845,063.77/285,266.80
  6. Step 6: Final answer
    x = 286,762.59

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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.