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Finding the Fourth Proportional to 310,123.80, 465,185.70 and 297,001.80

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Solution

The fourth proportional to 310,123.80, 465,185.70 and 297,001.80 is: 445,502.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,123.80 : 465,185.70 = 297,001.80 : x
  2. Step 2: Convert to fraction form
    310,123.80/465,185.70 = 297,001.80/x
  3. Step 3: Cross multiply
    310,123.80x = 465,185.70 × 297,001.80
  4. Step 4: Simplify right side
    310,123.80x = 138,160,990,234.26
  5. Step 5: Solve for x
    x = 138,160,990,234.26/310,123.80
  6. Step 6: Final answer
    x = 445,502.70

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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.