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Finding the Fourth Proportional to 296,913.60, 445,078.80 and 265,420.80

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Solution

The fourth proportional to 296,913.60, 445,078.80 and 265,420.80 is: 397,870.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,913.60 : 445,078.80 = 265,420.80 : x
  2. Step 2: Convert to fraction form
    296,913.60/445,078.80 = 265,420.80/x
  3. Step 3: Cross multiply
    296,913.60x = 445,078.80 × 265,420.80
  4. Step 4: Simplify right side
    296,913.60x = 118,133,171,159.04
  5. Step 5: Solve for x
    x = 118,133,171,159.04/296,913.60
  6. Step 6: Final answer
    x = 397,870.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.