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Finding the Fourth Proportional to 154,666.35, 231,999.35 and 42,347.43

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Solution

The fourth proportional to 154,666.35, 231,999.35 and 42,347.43 is: 63,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,666.35 : 231,999.35 = 42,347.43 : x
  2. Step 2: Convert to fraction form
    154,666.35/231,999.35 = 42,347.43/x
  3. Step 3: Cross multiply
    154,666.35x = 231,999.35 × 42,347.43
  4. Step 4: Simplify right side
    154,666.35x = 9,824,576,022.43
  5. Step 5: Solve for x
    x = 9,824,576,022.43/154,666.35
  6. Step 6: Final answer
    x = 63,521.10

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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.