Home / 280,239.08-386,732.22-152,916.80

Finding the Fourth Proportional to 280,239.08, 386,732.22 and 152,916.80

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Solution

The fourth proportional to 280,239.08, 386,732.22 and 152,916.80 is: 211,026.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,239.08 : 386,732.22 = 152,916.80 : x
  2. Step 2: Convert to fraction form
    280,239.08/386,732.22 = 152,916.80/x
  3. Step 3: Cross multiply
    280,239.08x = 386,732.22 × 152,916.80
  4. Step 4: Simplify right side
    280,239.08x = 59,137,853,539.30
  5. Step 5: Solve for x
    x = 59,137,853,539.30/280,239.08
  6. Step 6: Final answer
    x = 211,026.43

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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.