Home / 291,650.10-402,477.18-157,514.10

Finding the Fourth Proportional to 291,650.10, 402,477.18 and 157,514.10

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Solution

The fourth proportional to 291,650.10, 402,477.18 and 157,514.10 is: 217,369.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,650.10 : 402,477.18 = 157,514.10 : x
  2. Step 2: Convert to fraction form
    291,650.10/402,477.18 = 157,514.10/x
  3. Step 3: Cross multiply
    291,650.10x = 402,477.18 × 157,514.10
  4. Step 4: Simplify right side
    291,650.10x = 63,395,830,778.24
  5. Step 5: Solve for x
    x = 63,395,830,778.24/291,650.10
  6. Step 6: Final answer
    x = 217,369.48

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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.