Home / 284,495.05-392,611.10-157,178.85

Finding the Fourth Proportional to 284,495.05, 392,611.10 and 157,178.85

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Solution

The fourth proportional to 284,495.05, 392,611.10 and 157,178.85 is: 216,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,495.05 : 392,611.10 = 157,178.85 : x
  2. Step 2: Convert to fraction form
    284,495.05/392,611.10 = 157,178.85/x
  3. Step 3: Cross multiply
    284,495.05x = 392,611.10 × 157,178.85
  4. Step 4: Simplify right side
    284,495.05x = 61,710,161,195.24
  5. Step 5: Solve for x
    x = 61,710,161,195.24/284,495.05
  6. Step 6: Final answer
    x = 216,911.19

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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.