Home / 305,890.30-458,835.45-242,904.70

Finding the Fourth Proportional to 305,890.30, 458,835.45 and 242,904.70

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Solution

The fourth proportional to 305,890.30, 458,835.45 and 242,904.70 is: 364,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,890.30 : 458,835.45 = 242,904.70 : x
  2. Step 2: Convert to fraction form
    305,890.30/458,835.45 = 242,904.70/x
  3. Step 3: Cross multiply
    305,890.30x = 458,835.45 × 242,904.70
  4. Step 4: Simplify right side
    305,890.30x = 111,453,287,331.62
  5. Step 5: Solve for x
    x = 111,453,287,331.62/305,890.30
  6. Step 6: Final answer
    x = 364,357.05

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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.