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Finding the Fourth Proportional to 285,439.68, 426,423.44 and 184,779.84

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Solution

The fourth proportional to 285,439.68, 426,423.44 and 184,779.84 is: 276,045.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,439.68 : 426,423.44 = 184,779.84 : x
  2. Step 2: Convert to fraction form
    285,439.68/426,423.44 = 184,779.84/x
  3. Step 3: Cross multiply
    285,439.68x = 426,423.44 × 184,779.84
  4. Step 4: Simplify right side
    285,439.68x = 78,794,455,015.45
  5. Step 5: Solve for x
    x = 78,794,455,015.45/285,439.68
  6. Step 6: Final answer
    x = 276,045.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.