Home / 285,262.08-427,875.20-74,895.36

Finding the Fourth Proportional to 285,262.08, 427,875.20 and 74,895.36

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Solution

The fourth proportional to 285,262.08, 427,875.20 and 74,895.36 is: 112,338.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,262.08 : 427,875.20 = 74,895.36 : x
  2. Step 2: Convert to fraction form
    285,262.08/427,875.20 = 74,895.36/x
  3. Step 3: Cross multiply
    285,262.08x = 427,875.20 × 74,895.36
  4. Step 4: Simplify right side
    285,262.08x = 32,045,867,139.07
  5. Step 5: Solve for x
    x = 32,045,867,139.07/285,262.08
  6. Step 6: Final answer
    x = 112,338.34

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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.