Home / 389,810.34-537,938.28-210,962.34

Finding the Fourth Proportional to 389,810.34, 537,938.28 and 210,962.34

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Solution

The fourth proportional to 389,810.34, 537,938.28 and 210,962.34 is: 291,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,810.34 : 537,938.28 = 210,962.34 : x
  2. Step 2: Convert to fraction form
    389,810.34/537,938.28 = 210,962.34/x
  3. Step 3: Cross multiply
    389,810.34x = 537,938.28 × 210,962.34
  4. Step 4: Simplify right side
    389,810.34x = 113,484,718,324.38
  5. Step 5: Solve for x
    x = 113,484,718,324.38/389,810.34
  6. Step 6: Final answer
    x = 291,128.04

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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.