Home / 400,207.43-600,266.77-100,688.06

Finding the Fourth Proportional to 400,207.43, 600,266.77 and 100,688.06

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Solution

The fourth proportional to 400,207.43, 600,266.77 and 100,688.06 is: 151,020.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,207.43 : 600,266.77 = 100,688.06 : x
  2. Step 2: Convert to fraction form
    400,207.43/600,266.77 = 100,688.06/x
  3. Step 3: Cross multiply
    400,207.43x = 600,266.77 × 100,688.06
  4. Step 4: Simplify right side
    400,207.43x = 60,439,697,802.71
  5. Step 5: Solve for x
    x = 60,439,697,802.71/400,207.43
  6. Step 6: Final answer
    x = 151,020.93

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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.