Home / 415,938.20-623,907.30-149,707.40

Finding the Fourth Proportional to 415,938.20, 623,907.30 and 149,707.40

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Solution

The fourth proportional to 415,938.20, 623,907.30 and 149,707.40 is: 224,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,938.20 : 623,907.30 = 149,707.40 : x
  2. Step 2: Convert to fraction form
    415,938.20/623,907.30 = 149,707.40/x
  3. Step 3: Cross multiply
    415,938.20x = 623,907.30 × 149,707.40
  4. Step 4: Simplify right side
    415,938.20x = 93,403,539,724.02
  5. Step 5: Solve for x
    x = 93,403,539,724.02/415,938.20
  6. Step 6: Final answer
    x = 224,561.10

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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.