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Finding the Fourth Proportional to 487,244.64, 730,711.44 and 154,742.88

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Solution

The fourth proportional to 487,244.64, 730,711.44 and 154,742.88 is: 232,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,244.64 : 730,711.44 = 154,742.88 : x
  2. Step 2: Convert to fraction form
    487,244.64/730,711.44 = 154,742.88/x
  3. Step 3: Cross multiply
    487,244.64x = 730,711.44 × 154,742.88
  4. Step 4: Simplify right side
    487,244.64x = 113,072,392,674.55
  5. Step 5: Solve for x
    x = 113,072,392,674.55/487,244.64
  6. Step 6: Final answer
    x = 232,064.93

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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.