Home / 306,953.12-423,608.40-170,987.16

Finding the Fourth Proportional to 306,953.12, 423,608.40 and 170,987.16

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Solution

The fourth proportional to 306,953.12, 423,608.40 and 170,987.16 is: 235,969.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,953.12 : 423,608.40 = 170,987.16 : x
  2. Step 2: Convert to fraction form
    306,953.12/423,608.40 = 170,987.16/x
  3. Step 3: Cross multiply
    306,953.12x = 423,608.40 × 170,987.16
  4. Step 4: Simplify right side
    306,953.12x = 72,431,597,268.14
  5. Step 5: Solve for x
    x = 72,431,597,268.14/306,953.12
  6. Step 6: Final answer
    x = 235,969.58

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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.