Home / 245,587.05-338,882.67-138,154.86

Finding the Fourth Proportional to 245,587.05, 338,882.67 and 138,154.86

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Solution

The fourth proportional to 245,587.05, 338,882.67 and 138,154.86 is: 190,638.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,587.05 : 338,882.67 = 138,154.86 : x
  2. Step 2: Convert to fraction form
    245,587.05/338,882.67 = 138,154.86/x
  3. Step 3: Cross multiply
    245,587.05x = 338,882.67 × 138,154.86
  4. Step 4: Simplify right side
    245,587.05x = 46,818,287,830.28
  5. Step 5: Solve for x
    x = 46,818,287,830.28/245,587.05
  6. Step 6: Final answer
    x = 190,638.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.