Home / 402,688.03-603,487.71-178,010.23

Finding the Fourth Proportional to 402,688.03, 603,487.71 and 178,010.23

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Solution

The fourth proportional to 402,688.03, 603,487.71 and 178,010.23 is: 266,774.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,688.03 : 603,487.71 = 178,010.23 : x
  2. Step 2: Convert to fraction form
    402,688.03/603,487.71 = 178,010.23/x
  3. Step 3: Cross multiply
    402,688.03x = 603,487.71 × 178,010.23
  4. Step 4: Simplify right side
    402,688.03x = 107,426,986,059.27
  5. Step 5: Solve for x
    x = 107,426,986,059.27/402,688.03
  6. Step 6: Final answer
    x = 266,774.72

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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.