Home / 389,138.80-583,276.20-152,402.80

Finding the Fourth Proportional to 389,138.80, 583,276.20 and 152,402.80

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Solution

The fourth proportional to 389,138.80, 583,276.20 and 152,402.80 is: 228,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,138.80 : 583,276.20 = 152,402.80 : x
  2. Step 2: Convert to fraction form
    389,138.80/583,276.20 = 152,402.80/x
  3. Step 3: Cross multiply
    389,138.80x = 583,276.20 × 152,402.80
  4. Step 4: Simplify right side
    389,138.80x = 88,892,926,053.36
  5. Step 5: Solve for x
    x = 88,892,926,053.36/389,138.80
  6. Step 6: Final answer
    x = 228,435.01

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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.