Home / 318,659.02-439,747.05-175,421.50

Finding the Fourth Proportional to 318,659.02, 439,747.05 and 175,421.50

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Solution

The fourth proportional to 318,659.02, 439,747.05 and 175,421.50 is: 242,080.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,659.02 : 439,747.05 = 175,421.50 : x
  2. Step 2: Convert to fraction form
    318,659.02/439,747.05 = 175,421.50/x
  3. Step 3: Cross multiply
    318,659.02x = 439,747.05 × 175,421.50
  4. Step 4: Simplify right side
    318,659.02x = 77,141,087,131.58
  5. Step 5: Solve for x
    x = 77,141,087,131.58/318,659.02
  6. Step 6: Final answer
    x = 242,080.35

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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.