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Finding the Fourth Proportional to 342,281.60, 472,203.96 and 229,140.80

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Solution

The fourth proportional to 342,281.60, 472,203.96 and 229,140.80 is: 316,117.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,281.60 : 472,203.96 = 229,140.80 : x
  2. Step 2: Convert to fraction form
    342,281.60/472,203.96 = 229,140.80/x
  3. Step 3: Cross multiply
    342,281.60x = 472,203.96 × 229,140.80
  4. Step 4: Simplify right side
    342,281.60x = 108,201,190,796.55
  5. Step 5: Solve for x
    x = 108,201,190,796.55/342,281.60
  6. Step 6: Final answer
    x = 316,117.47

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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.