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Finding the Fourth Proportional to 536,134.60, 740,031.84 and 345,148

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Solution

The fourth proportional to 536,134.60, 740,031.84 and 345,148 is: 476,411.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,134.60 : 740,031.84 = 345,148 : x
  2. Step 2: Convert to fraction form
    536,134.60/740,031.84 = 345,148/x
  3. Step 3: Cross multiply
    536,134.60x = 740,031.84 × 345,148
  4. Step 4: Simplify right side
    536,134.60x = 255,420,509,512.32
  5. Step 5: Solve for x
    x = 255,420,509,512.32/536,134.60
  6. Step 6: Final answer
    x = 476,411.17

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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.