Home / 257,720.32-355,666.02-160,981.46

Finding the Fourth Proportional to 257,720.32, 355,666.02 and 160,981.46

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Solution

The fourth proportional to 257,720.32, 355,666.02 and 160,981.46 is: 222,161.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,720.32 : 355,666.02 = 160,981.46 : x
  2. Step 2: Convert to fraction form
    257,720.32/355,666.02 = 160,981.46/x
  3. Step 3: Cross multiply
    257,720.32x = 355,666.02 × 160,981.46
  4. Step 4: Simplify right side
    257,720.32x = 57,255,635,171.99
  5. Step 5: Solve for x
    x = 57,255,635,171.99/257,720.32
  6. Step 6: Final answer
    x = 222,161.90

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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.