Home / 426,740.54-640,206.14-160,503.36

Finding the Fourth Proportional to 426,740.54, 640,206.14 and 160,503.36

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Solution

The fourth proportional to 426,740.54, 640,206.14 and 160,503.36 is: 240,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,740.54 : 640,206.14 = 160,503.36 : x
  2. Step 2: Convert to fraction form
    426,740.54/640,206.14 = 160,503.36/x
  3. Step 3: Cross multiply
    426,740.54x = 640,206.14 × 160,503.36
  4. Step 4: Simplify right side
    426,740.54x = 102,755,236,562.63
  5. Step 5: Solve for x
    x = 102,755,236,562.63/426,740.54
  6. Step 6: Final answer
    x = 240,790.90

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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.