Home / 516,712.20-774,650.04-161,543.40

Finding the Fourth Proportional to 516,712.20, 774,650.04 and 161,543.40

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Solution

The fourth proportional to 516,712.20, 774,650.04 and 161,543.40 is: 242,184.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,712.20 : 774,650.04 = 161,543.40 : x
  2. Step 2: Convert to fraction form
    516,712.20/774,650.04 = 161,543.40/x
  3. Step 3: Cross multiply
    516,712.20x = 774,650.04 × 161,543.40
  4. Step 4: Simplify right side
    516,712.20x = 125,139,601,271.74
  5. Step 5: Solve for x
    x = 125,139,601,271.74/516,712.20
  6. Step 6: Final answer
    x = 242,184.34

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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.