Home / 228,985.16-343,412.10-77,165.64

Finding the Fourth Proportional to 228,985.16, 343,412.10 and 77,165.64

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Solution

The fourth proportional to 228,985.16, 343,412.10 and 77,165.64 is: 115,726.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,985.16 : 343,412.10 = 77,165.64 : x
  2. Step 2: Convert to fraction form
    228,985.16/343,412.10 = 77,165.64/x
  3. Step 3: Cross multiply
    228,985.16x = 343,412.10 × 77,165.64
  4. Step 4: Simplify right side
    228,985.16x = 26,499,614,480.24
  5. Step 5: Solve for x
    x = 26,499,614,480.24/228,985.16
  6. Step 6: Final answer
    x = 115,726.34

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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.