Home / 238,977.10-358,465.65-72,765.10

Finding the Fourth Proportional to 238,977.10, 358,465.65 and 72,765.10

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Solution

The fourth proportional to 238,977.10, 358,465.65 and 72,765.10 is: 109,147.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,977.10 : 358,465.65 = 72,765.10 : x
  2. Step 2: Convert to fraction form
    238,977.10/358,465.65 = 72,765.10/x
  3. Step 3: Cross multiply
    238,977.10x = 358,465.65 × 72,765.10
  4. Step 4: Simplify right side
    238,977.10x = 26,083,788,868.82
  5. Step 5: Solve for x
    x = 26,083,788,868.82/238,977.10
  6. Step 6: Final answer
    x = 109,147.65

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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.