Home / 291,983.10-402,936.51-157,847.10

Finding the Fourth Proportional to 291,983.10, 402,936.51 and 157,847.10

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Solution

The fourth proportional to 291,983.10, 402,936.51 and 157,847.10 is: 217,828.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,983.10 : 402,936.51 = 157,847.10 : x
  2. Step 2: Convert to fraction form
    291,983.10/402,936.51 = 157,847.10/x
  3. Step 3: Cross multiply
    291,983.10x = 402,936.51 × 157,847.10
  4. Step 4: Simplify right side
    291,983.10x = 63,602,359,587.62
  5. Step 5: Solve for x
    x = 63,602,359,587.62/291,983.10
  6. Step 6: Final answer
    x = 217,828.91

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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.