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Finding the Fourth Proportional to 313,548.75, 432,699.60 and 170,308.74

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Solution

The fourth proportional to 313,548.75, 432,699.60 and 170,308.74 is: 235,027.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,548.75 : 432,699.60 = 170,308.74 : x
  2. Step 2: Convert to fraction form
    313,548.75/432,699.60 = 170,308.74/x
  3. Step 3: Cross multiply
    313,548.75x = 432,699.60 × 170,308.74
  4. Step 4: Simplify right side
    313,548.75x = 73,692,523,674.50
  5. Step 5: Solve for x
    x = 73,692,523,674.50/313,548.75
  6. Step 6: Final answer
    x = 235,027.32

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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.