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Finding the Fourth Proportional to 316,486.09, 474,744.46 and 103,253.59

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Solution

The fourth proportional to 316,486.09, 474,744.46 and 103,253.59 is: 154,885.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,486.09 : 474,744.46 = 103,253.59 : x
  2. Step 2: Convert to fraction form
    316,486.09/474,744.46 = 103,253.59/x
  3. Step 3: Cross multiply
    316,486.09x = 474,744.46 × 103,253.59
  4. Step 4: Simplify right side
    316,486.09x = 49,019,069,827.61
  5. Step 5: Solve for x
    x = 49,019,069,827.61/316,486.09
  6. Step 6: Final answer
    x = 154,885.38

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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.