Home / 402,300.23-555,286.05-230,314.55

Finding the Fourth Proportional to 402,300.23, 555,286.05 and 230,314.55

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Solution

The fourth proportional to 402,300.23, 555,286.05 and 230,314.55 is: 317,898.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,300.23 : 555,286.05 = 230,314.55 : x
  2. Step 2: Convert to fraction form
    402,300.23/555,286.05 = 230,314.55/x
  3. Step 3: Cross multiply
    402,300.23x = 555,286.05 × 230,314.55
  4. Step 4: Simplify right side
    402,300.23x = 127,890,453,950.60
  5. Step 5: Solve for x
    x = 127,890,453,950.60/402,300.23
  6. Step 6: Final answer
    x = 317,898.04

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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.