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Finding the Fourth Proportional to 291,790.90, 437,686.32 and 151,254.28

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Solution

The fourth proportional to 291,790.90, 437,686.32 and 151,254.28 is: 226,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,790.90 : 437,686.32 = 151,254.28 : x
  2. Step 2: Convert to fraction form
    291,790.90/437,686.32 = 151,254.28/x
  3. Step 3: Cross multiply
    291,790.90x = 437,686.32 × 151,254.28
  4. Step 4: Simplify right side
    291,790.90x = 66,201,929,197.45
  5. Step 5: Solve for x
    x = 66,201,929,197.45/291,790.90
  6. Step 6: Final answer
    x = 226,881.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.