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Finding the Fourth Proportional to 313,700.55, 432,909.50 and 170,460.60

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Solution

The fourth proportional to 313,700.55, 432,909.50 and 170,460.60 is: 235,237.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,700.55 : 432,909.50 = 170,460.60 : x
  2. Step 2: Convert to fraction form
    313,700.55/432,909.50 = 170,460.60/x
  3. Step 3: Cross multiply
    313,700.55x = 432,909.50 × 170,460.60
  4. Step 4: Simplify right side
    313,700.55x = 73,794,012,263.40
  5. Step 5: Solve for x
    x = 73,794,012,263.40/313,700.55
  6. Step 6: Final answer
    x = 235,237.11

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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.