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Finding the Fourth Proportional to 318,062, 438,915.68 and 174,821.60

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Solution

The fourth proportional to 318,062, 438,915.68 and 174,821.60 is: 241,248.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,062 : 438,915.68 = 174,821.60 : x
  2. Step 2: Convert to fraction form
    318,062/438,915.68 = 174,821.60/x
  3. Step 3: Cross multiply
    318,062x = 438,915.68 × 174,821.60
  4. Step 4: Simplify right side
    318,062x = 76,731,941,442.69
  5. Step 5: Solve for x
    x = 76,731,941,442.69/318,062
  6. Step 6: Final answer
    x = 241,248.38

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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.