Home / 330,111.32-455,564.45-186,868.28

Finding the Fourth Proportional to 330,111.32, 455,564.45 and 186,868.28

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Solution

The fourth proportional to 330,111.32, 455,564.45 and 186,868.28 is: 257,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,111.32 : 455,564.45 = 186,868.28 : x
  2. Step 2: Convert to fraction form
    330,111.32/455,564.45 = 186,868.28/x
  3. Step 3: Cross multiply
    330,111.32x = 455,564.45 × 186,868.28
  4. Step 4: Simplify right side
    330,111.32x = 85,130,541,988.48
  5. Step 5: Solve for x
    x = 85,130,541,988.48/330,111.32
  6. Step 6: Final answer
    x = 257,884.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.