Home / 318,695.45-439,783.02-175,427.51

Finding the Fourth Proportional to 318,695.45, 439,783.02 and 175,427.51

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Solution

The fourth proportional to 318,695.45, 439,783.02 and 175,427.51 is: 242,080.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,695.45 : 439,783.02 = 175,427.51 : x
  2. Step 2: Convert to fraction form
    318,695.45/439,783.02 = 175,427.51/x
  3. Step 3: Cross multiply
    318,695.45x = 439,783.02 × 175,427.51
  4. Step 4: Simplify right side
    318,695.45x = 77,150,037,939.97
  5. Step 5: Solve for x
    x = 77,150,037,939.97/318,695.45
  6. Step 6: Final answer
    x = 242,080.77

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1.5x scale

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.