Home / 318,840.12-439,994.04-175,613.52

Finding the Fourth Proportional to 318,840.12, 439,994.04 and 175,613.52

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Solution

The fourth proportional to 318,840.12, 439,994.04 and 175,613.52 is: 242,343.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,840.12 : 439,994.04 = 175,613.52 : x
  2. Step 2: Convert to fraction form
    318,840.12/439,994.04 = 175,613.52/x
  3. Step 3: Cross multiply
    318,840.12x = 439,994.04 × 175,613.52
  4. Step 4: Simplify right side
    318,840.12x = 77,268,902,143.42
  5. Step 5: Solve for x
    x = 77,268,902,143.42/318,840.12
  6. Step 6: Final answer
    x = 242,343.72

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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.