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Finding the Fourth Proportional to 347,293.52, 520,266.20 and 255,943

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Solution

The fourth proportional to 347,293.52, 520,266.20 and 255,943 is: 383,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,293.52 : 520,266.20 = 255,943 : x
  2. Step 2: Convert to fraction form
    347,293.52/520,266.20 = 255,943/x
  3. Step 3: Cross multiply
    347,293.52x = 520,266.20 × 255,943
  4. Step 4: Simplify right side
    347,293.52x = 133,158,492,026.60
  5. Step 5: Solve for x
    x = 133,158,492,026.60/347,293.52
  6. Step 6: Final answer
    x = 383,417.73

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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.