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Finding the Fourth Proportional to 381,592.42, 526,598.59 and 209,521.53

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Solution

The fourth proportional to 381,592.42, 526,598.59 and 209,521.53 is: 289,140.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,592.42 : 526,598.59 = 209,521.53 : x
  2. Step 2: Convert to fraction form
    381,592.42/526,598.59 = 209,521.53/x
  3. Step 3: Cross multiply
    381,592.42x = 526,598.59 × 209,521.53
  4. Step 4: Simplify right side
    381,592.42x = 110,333,741,748.84
  5. Step 5: Solve for x
    x = 110,333,741,748.84/381,592.42
  6. Step 6: Final answer
    x = 289,140.29

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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.