Home / 318,143.24-439,011.56-187,300.08

Finding the Fourth Proportional to 318,143.24, 439,011.56 and 187,300.08

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Solution

The fourth proportional to 318,143.24, 439,011.56 and 187,300.08 is: 258,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,143.24 : 439,011.56 = 187,300.08 : x
  2. Step 2: Convert to fraction form
    318,143.24/439,011.56 = 187,300.08/x
  3. Step 3: Cross multiply
    318,143.24x = 439,011.56 × 187,300.08
  4. Step 4: Simplify right side
    318,143.24x = 82,226,900,308.92
  5. Step 5: Solve for x
    x = 82,226,900,308.92/318,143.24
  6. Step 6: Final answer
    x = 258,458.74

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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.