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Finding the Fourth Proportional to 283,229.84, 390,842.16 and 155,880.92

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Solution

The fourth proportional to 283,229.84, 390,842.16 and 155,880.92 is: 215,107.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,229.84 : 390,842.16 = 155,880.92 : x
  2. Step 2: Convert to fraction form
    283,229.84/390,842.16 = 155,880.92/x
  3. Step 3: Cross multiply
    283,229.84x = 390,842.16 × 155,880.92
  4. Step 4: Simplify right side
    283,229.84x = 60,924,835,475.59
  5. Step 5: Solve for x
    x = 60,924,835,475.59/283,229.84
  6. Step 6: Final answer
    x = 215,107.40

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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.