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Finding the Fourth Proportional to 292,751.70, 439,127.55 and 82,362.30

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Solution

The fourth proportional to 292,751.70, 439,127.55 and 82,362.30 is: 123,543.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,751.70 : 439,127.55 = 82,362.30 : x
  2. Step 2: Convert to fraction form
    292,751.70/439,127.55 = 82,362.30/x
  3. Step 3: Cross multiply
    292,751.70x = 439,127.55 × 82,362.30
  4. Step 4: Simplify right side
    292,751.70x = 36,167,555,011.37
  5. Step 5: Solve for x
    x = 36,167,555,011.37/292,751.70
  6. Step 6: Final answer
    x = 123,543.45

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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.