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Finding the Fourth Proportional to 297,235.20, 445,852.80 and 286,737.60

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Solution

The fourth proportional to 297,235.20, 445,852.80 and 286,737.60 is: 430,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,235.20 : 445,852.80 = 286,737.60 : x
  2. Step 2: Convert to fraction form
    297,235.20/445,852.80 = 286,737.60/x
  3. Step 3: Cross multiply
    297,235.20x = 445,852.80 × 286,737.60
  4. Step 4: Simplify right side
    297,235.20x = 127,842,761,825.28
  5. Step 5: Solve for x
    x = 127,842,761,825.28/297,235.20
  6. Step 6: Final answer
    x = 430,106.40

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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.