Home / 306,642.11-423,162.77-170,673.89

Finding the Fourth Proportional to 306,642.11, 423,162.77 and 170,673.89

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Solution

The fourth proportional to 306,642.11, 423,162.77 and 170,673.89 is: 235,528.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,642.11 : 423,162.77 = 170,673.89 : x
  2. Step 2: Convert to fraction form
    306,642.11/423,162.77 = 170,673.89/x
  3. Step 3: Cross multiply
    306,642.11x = 423,162.77 × 170,673.89
  4. Step 4: Simplify right side
    306,642.11x = 72,222,833,089.89
  5. Step 5: Solve for x
    x = 72,222,833,089.89/306,642.11
  6. Step 6: Final answer
    x = 235,528.10

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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.