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Finding the Fourth Proportional to 312,186.80, 466,897.80 and 262,420.40

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Solution

The fourth proportional to 312,186.80, 466,897.80 and 262,420.40 is: 392,468.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,186.80 : 466,897.80 = 262,420.40 : x
  2. Step 2: Convert to fraction form
    312,186.80/466,897.80 = 262,420.40/x
  3. Step 3: Cross multiply
    312,186.80x = 466,897.80 × 262,420.40
  4. Step 4: Simplify right side
    312,186.80x = 122,523,507,435.12
  5. Step 5: Solve for x
    x = 122,523,507,435.12/312,186.80
  6. Step 6: Final answer
    x = 392,468.57

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1.5x scale

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.