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Finding the Fourth Proportional to 536,448.70, 803,360.85 and 255,637.90

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Solution

The fourth proportional to 536,448.70, 803,360.85 and 255,637.90 is: 382,831.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,448.70 : 803,360.85 = 255,637.90 : x
  2. Step 2: Convert to fraction form
    536,448.70/803,360.85 = 255,637.90/x
  3. Step 3: Cross multiply
    536,448.70x = 803,360.85 × 255,637.90
  4. Step 4: Simplify right side
    536,448.70x = 205,369,480,636.22
  5. Step 5: Solve for x
    x = 205,369,480,636.22/536,448.70
  6. Step 6: Final answer
    x = 382,831.54

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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.