Home / 284,109.60-392,079.51-155,056.36

Finding the Fourth Proportional to 284,109.60, 392,079.51 and 155,056.36

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Solution

The fourth proportional to 284,109.60, 392,079.51 and 155,056.36 is: 213,982.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,109.60 : 392,079.51 = 155,056.36 : x
  2. Step 2: Convert to fraction form
    284,109.60/392,079.51 = 155,056.36/x
  3. Step 3: Cross multiply
    284,109.60x = 392,079.51 × 155,056.36
  4. Step 4: Simplify right side
    284,109.60x = 60,794,421,559.82
  5. Step 5: Solve for x
    x = 60,794,421,559.82/284,109.60
  6. Step 6: Final answer
    x = 213,982.29

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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.