Home / 284,130.45-392,087.66-155,065.59

Finding the Fourth Proportional to 284,130.45, 392,087.66 and 155,065.59

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Solution

The fourth proportional to 284,130.45, 392,087.66 and 155,065.59 is: 213,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,130.45 : 392,087.66 = 155,065.59 : x
  2. Step 2: Convert to fraction form
    284,130.45/392,087.66 = 155,065.59/x
  3. Step 3: Cross multiply
    284,130.45x = 392,087.66 × 155,065.59
  4. Step 4: Simplify right side
    284,130.45x = 60,799,303,554.29
  5. Step 5: Solve for x
    x = 60,799,303,554.29/284,130.45
  6. Step 6: Final answer
    x = 213,983.77

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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.