Home / 278,310.13-384,068.12-150,985.69

Finding the Fourth Proportional to 278,310.13, 384,068.12 and 150,985.69

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Solution

The fourth proportional to 278,310.13, 384,068.12 and 150,985.69 is: 208,360.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,310.13 : 384,068.12 = 150,985.69 : x
  2. Step 2: Convert to fraction form
    278,310.13/384,068.12 = 150,985.69/x
  3. Step 3: Cross multiply
    278,310.13x = 384,068.12 × 150,985.69
  4. Step 4: Simplify right side
    278,310.13x = 57,988,788,390.10
  5. Step 5: Solve for x
    x = 57,988,788,390.10/278,310.13
  6. Step 6: Final answer
    x = 208,360.32

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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.