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Finding the Fourth Proportional to 310,124.01, 427,981.47 and 174,181.91

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Solution

The fourth proportional to 310,124.01, 427,981.47 and 174,181.91 is: 240,376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,124.01 : 427,981.47 = 174,181.91 : x
  2. Step 2: Convert to fraction form
    310,124.01/427,981.47 = 174,181.91/x
  3. Step 3: Cross multiply
    310,124.01x = 427,981.47 × 174,181.91
  4. Step 4: Simplify right side
    310,124.01x = 74,546,627,749.30
  5. Step 5: Solve for x
    x = 74,546,627,749.30/310,124.01
  6. Step 6: Final answer
    x = 240,376.83

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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.