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Finding the Fourth Proportional to 318,035, 438,869.74 and 174,795.18

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Solution

The fourth proportional to 318,035, 438,869.74 and 174,795.18 is: 241,207.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,035 : 438,869.74 = 174,795.18 : x
  2. Step 2: Convert to fraction form
    318,035/438,869.74 = 174,795.18/x
  3. Step 3: Cross multiply
    318,035x = 438,869.74 × 174,795.18
  4. Step 4: Simplify right side
    318,035x = 76,712,315,199.85
  5. Step 5: Solve for x
    x = 76,712,315,199.85/318,035
  6. Step 6: Final answer
    x = 241,207.15

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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.