Home / 255,631.52-382,888.50-210,754.28

Finding the Fourth Proportional to 255,631.52, 382,888.50 and 210,754.28

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Solution

The fourth proportional to 255,631.52, 382,888.50 and 210,754.28 is: 315,670.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,631.52 : 382,888.50 = 210,754.28 : x
  2. Step 2: Convert to fraction form
    255,631.52/382,888.50 = 210,754.28/x
  3. Step 3: Cross multiply
    255,631.52x = 382,888.50 × 210,754.28
  4. Step 4: Simplify right side
    255,631.52x = 80,695,390,137.78
  5. Step 5: Solve for x
    x = 80,695,390,137.78/255,631.52
  6. Step 6: Final answer
    x = 315,670.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.