Home / 389,275.03-537,217.95-219,505.51

Finding the Fourth Proportional to 389,275.03, 537,217.95 and 219,505.51

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Solution

The fourth proportional to 389,275.03, 537,217.95 and 219,505.51 is: 302,927.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,275.03 : 537,217.95 = 219,505.51 : x
  2. Step 2: Convert to fraction form
    389,275.03/537,217.95 = 219,505.51/x
  3. Step 3: Cross multiply
    389,275.03x = 537,217.95 × 219,505.51
  4. Step 4: Simplify right side
    389,275.03x = 117,922,300,095.91
  5. Step 5: Solve for x
    x = 117,922,300,095.91/389,275.03
  6. Step 6: Final answer
    x = 302,927.98

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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.