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Finding the Fourth Proportional to 318,019.18, 438,876.99 and 174,784.30

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Solution

The fourth proportional to 318,019.18, 438,876.99 and 174,784.30 is: 241,208.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,019.18 : 438,876.99 = 174,784.30 : x
  2. Step 2: Convert to fraction form
    318,019.18/438,876.99 = 174,784.30/x
  3. Step 3: Cross multiply
    318,019.18x = 438,876.99 × 174,784.30
  4. Step 4: Simplify right side
    318,019.18x = 76,708,807,483.26
  5. Step 5: Solve for x
    x = 76,708,807,483.26/318,019.18
  6. Step 6: Final answer
    x = 241,208.12

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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.