Home / 291,816.86-402,707.25-157,680.86

Finding the Fourth Proportional to 291,816.86, 402,707.25 and 157,680.86

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Solution

The fourth proportional to 291,816.86, 402,707.25 and 157,680.86 is: 217,599.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,816.86 : 402,707.25 = 157,680.86 : x
  2. Step 2: Convert to fraction form
    291,816.86/402,707.25 = 157,680.86/x
  3. Step 3: Cross multiply
    291,816.86x = 402,707.25 × 157,680.86
  4. Step 4: Simplify right side
    291,816.86x = 63,499,225,508.24
  5. Step 5: Solve for x
    x = 63,499,225,508.24/291,816.86
  6. Step 6: Final answer
    x = 217,599.58

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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.