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Finding the Fourth Proportional to 389,275.92, 537,200.87 and 219,510.09

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Solution

The fourth proportional to 389,275.92, 537,200.87 and 219,510.09 is: 302,923.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,275.92 : 537,200.87 = 219,510.09 : x
  2. Step 2: Convert to fraction form
    389,275.92/537,200.87 = 219,510.09/x
  3. Step 3: Cross multiply
    389,275.92x = 537,200.87 × 219,510.09
  4. Step 4: Simplify right side
    389,275.92x = 117,921,010,224.23
  5. Step 5: Solve for x
    x = 117,921,010,224.23/389,275.92
  6. Step 6: Final answer
    x = 302,923.98

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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.