Home / 389,280.73-537,208.19-210,432.73

Finding the Fourth Proportional to 389,280.73, 537,208.19 and 210,432.73

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Solution

The fourth proportional to 389,280.73, 537,208.19 and 210,432.73 is: 290,397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,280.73 : 537,208.19 = 210,432.73 : x
  2. Step 2: Convert to fraction form
    389,280.73/537,208.19 = 210,432.73/x
  3. Step 3: Cross multiply
    389,280.73x = 537,208.19 × 210,432.73
  4. Step 4: Simplify right side
    389,280.73x = 113,046,186,000.06
  5. Step 5: Solve for x
    x = 113,046,186,000.06/389,280.73
  6. Step 6: Final answer
    x = 290,397.59

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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.