Home / 345,211.48-477,009.68-268,927.55

Finding the Fourth Proportional to 345,211.48, 477,009.68 and 268,927.55

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Solution

The fourth proportional to 345,211.48, 477,009.68 and 268,927.55 is: 371,601.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,211.48 : 477,009.68 = 268,927.55 : x
  2. Step 2: Convert to fraction form
    345,211.48/477,009.68 = 268,927.55/x
  3. Step 3: Cross multiply
    345,211.48x = 477,009.68 × 268,927.55
  4. Step 4: Simplify right side
    345,211.48x = 128,281,044,568.68
  5. Step 5: Solve for x
    x = 128,281,044,568.68/345,211.48
  6. Step 6: Final answer
    x = 371,601.33

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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.