Home / 389,365.25-537,323.03-217,281.38

Finding the Fourth Proportional to 389,365.25, 537,323.03 and 217,281.38

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Solution

The fourth proportional to 389,365.25, 537,323.03 and 217,281.38 is: 299,847.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,365.25 : 537,323.03 = 217,281.38 : x
  2. Step 2: Convert to fraction form
    389,365.25/537,323.03 = 217,281.38/x
  3. Step 3: Cross multiply
    389,365.25x = 537,323.03 × 217,281.38
  4. Step 4: Simplify right side
    389,365.25x = 116,750,287,320.77
  5. Step 5: Solve for x
    x = 116,750,287,320.77/389,365.25
  6. Step 6: Final answer
    x = 299,847.74

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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.