Home / 306,728.55-423,277.17-170,762.52

Finding the Fourth Proportional to 306,728.55, 423,277.17 and 170,762.52

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Solution

The fourth proportional to 306,728.55, 423,277.17 and 170,762.52 is: 235,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,728.55 : 423,277.17 = 170,762.52 : x
  2. Step 2: Convert to fraction form
    306,728.55/423,277.17 = 170,762.52/x
  3. Step 3: Cross multiply
    306,728.55x = 423,277.17 × 170,762.52
  4. Step 4: Simplify right side
    306,728.55x = 72,279,876,207.67
  5. Step 5: Solve for x
    x = 72,279,876,207.67/306,728.55
  6. Step 6: Final answer
    x = 235,647.70

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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.