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Finding the Fourth Proportional to 369,886.16, 510,440.90 and 208,793.54

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Solution

The fourth proportional to 369,886.16, 510,440.90 and 208,793.54 is: 288,133.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,886.16 : 510,440.90 = 208,793.54 : x
  2. Step 2: Convert to fraction form
    369,886.16/510,440.90 = 208,793.54/x
  3. Step 3: Cross multiply
    369,886.16x = 510,440.90 × 208,793.54
  4. Step 4: Simplify right side
    369,886.16x = 106,576,762,471.79
  5. Step 5: Solve for x
    x = 106,576,762,471.79/369,886.16
  6. Step 6: Final answer
    x = 288,133.96

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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.