Home / 438,572.78-605,242.23-266,432.18

Finding the Fourth Proportional to 438,572.78, 605,242.23 and 266,432.18

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Solution

The fourth proportional to 438,572.78, 605,242.23 and 266,432.18 is: 367,683.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,572.78 : 605,242.23 = 266,432.18 : x
  2. Step 2: Convert to fraction form
    438,572.78/605,242.23 = 266,432.18/x
  3. Step 3: Cross multiply
    438,572.78x = 605,242.23 × 266,432.18
  4. Step 4: Simplify right side
    438,572.78x = 161,256,006,766.96
  5. Step 5: Solve for x
    x = 161,256,006,766.96/438,572.78
  6. Step 6: Final answer
    x = 367,683.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.