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Finding the Fourth Proportional to 283,615.40, 425,423.10 and 157,644.20

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Solution

The fourth proportional to 283,615.40, 425,423.10 and 157,644.20 is: 236,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,615.40 : 425,423.10 = 157,644.20 : x
  2. Step 2: Convert to fraction form
    283,615.40/425,423.10 = 157,644.20/x
  3. Step 3: Cross multiply
    283,615.40x = 425,423.10 × 157,644.20
  4. Step 4: Simplify right side
    283,615.40x = 67,065,484,261.02
  5. Step 5: Solve for x
    x = 67,065,484,261.02/283,615.40
  6. Step 6: Final answer
    x = 236,466.30

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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.