Home / 426,634.93-640,047.85-160,397.75

Finding the Fourth Proportional to 426,634.93, 640,047.85 and 160,397.75

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Solution

The fourth proportional to 426,634.93, 640,047.85 and 160,397.75 is: 240,632.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,634.93 : 640,047.85 = 160,397.75 : x
  2. Step 2: Convert to fraction form
    426,634.93/640,047.85 = 160,397.75/x
  3. Step 3: Cross multiply
    426,634.93x = 640,047.85 × 160,397.75
  4. Step 4: Simplify right side
    426,634.93x = 102,662,234,631.34
  5. Step 5: Solve for x
    x = 102,662,234,631.34/426,634.93
  6. Step 6: Final answer
    x = 240,632.51

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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.