Home / 306,623.34-423,136.71-170,654.94

Finding the Fourth Proportional to 306,623.34, 423,136.71 and 170,654.94

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Solution

The fourth proportional to 306,623.34, 423,136.71 and 170,654.94 is: 235,501.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,623.34 : 423,136.71 = 170,654.94 : x
  2. Step 2: Convert to fraction form
    306,623.34/423,136.71 = 170,654.94/x
  3. Step 3: Cross multiply
    306,623.34x = 423,136.71 × 170,654.94
  4. Step 4: Simplify right side
    306,623.34x = 72,210,369,856.85
  5. Step 5: Solve for x
    x = 72,210,369,856.85/306,623.34
  6. Step 6: Final answer
    x = 235,501.87

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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.