Home / 287,975.01-397,404.30-160,650.72

Finding the Fourth Proportional to 287,975.01, 397,404.30 and 160,650.72

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Solution

The fourth proportional to 287,975.01, 397,404.30 and 160,650.72 is: 221,697.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,975.01 : 397,404.30 = 160,650.72 : x
  2. Step 2: Convert to fraction form
    287,975.01/397,404.30 = 160,650.72/x
  3. Step 3: Cross multiply
    287,975.01x = 397,404.30 × 160,650.72
  4. Step 4: Simplify right side
    287,975.01x = 63,843,286,926.10
  5. Step 5: Solve for x
    x = 63,843,286,926.10/287,975.01
  6. Step 6: Final answer
    x = 221,697.32

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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.