Home / 495,398.12-743,095.78-140,415.21

Finding the Fourth Proportional to 495,398.12, 743,095.78 and 140,415.21

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Solution

The fourth proportional to 495,398.12, 743,095.78 and 140,415.21 is: 210,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,398.12 : 743,095.78 = 140,415.21 : x
  2. Step 2: Convert to fraction form
    495,398.12/743,095.78 = 140,415.21/x
  3. Step 3: Cross multiply
    495,398.12x = 743,095.78 × 140,415.21
  4. Step 4: Simplify right side
    495,398.12x = 104,341,949,647.78
  5. Step 5: Solve for x
    x = 104,341,949,647.78/495,398.12
  6. Step 6: Final answer
    x = 210,622.42

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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.