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Finding the Fourth Proportional to 499,303.36, 748,292.64 and 218,514.88

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Solution

The fourth proportional to 499,303.36, 748,292.64 and 218,514.88 is: 327,482.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,303.36 : 748,292.64 = 218,514.88 : x
  2. Step 2: Convert to fraction form
    499,303.36/748,292.64 = 218,514.88/x
  3. Step 3: Cross multiply
    499,303.36x = 748,292.64 × 218,514.88
  4. Step 4: Simplify right side
    499,303.36x = 163,513,076,434.48
  5. Step 5: Solve for x
    x = 163,513,076,434.48/499,303.36
  6. Step 6: Final answer
    x = 327,482.43

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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.