Home / 314,431.20-471,646.80-104,090.40

Finding the Fourth Proportional to 314,431.20, 471,646.80 and 104,090.40

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Solution

The fourth proportional to 314,431.20, 471,646.80 and 104,090.40 is: 156,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,431.20 : 471,646.80 = 104,090.40 : x
  2. Step 2: Convert to fraction form
    314,431.20/471,646.80 = 104,090.40/x
  3. Step 3: Cross multiply
    314,431.20x = 471,646.80 × 104,090.40
  4. Step 4: Simplify right side
    314,431.20x = 49,093,904,070.72
  5. Step 5: Solve for x
    x = 49,093,904,070.72/314,431.20
  6. Step 6: Final answer
    x = 156,135.60

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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.