Home / 282,334.74-389,622.70-155,018.58

Finding the Fourth Proportional to 282,334.74, 389,622.70 and 155,018.58

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Solution

The fourth proportional to 282,334.74, 389,622.70 and 155,018.58 is: 213,926.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,334.74 : 389,622.70 = 155,018.58 : x
  2. Step 2: Convert to fraction form
    282,334.74/389,622.70 = 155,018.58/x
  3. Step 3: Cross multiply
    282,334.74x = 389,622.70 × 155,018.58
  4. Step 4: Simplify right side
    282,334.74x = 60,398,755,354.11
  5. Step 5: Solve for x
    x = 60,398,755,354.11/282,334.74
  6. Step 6: Final answer
    x = 213,926.05

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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.