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Finding the Fourth Proportional to 460,890.63, 636,031.71 and 256,954.50

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Solution

The fourth proportional to 460,890.63, 636,031.71 and 256,954.50 is: 354,598.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,890.63 : 636,031.71 = 256,954.50 : x
  2. Step 2: Convert to fraction form
    460,890.63/636,031.71 = 256,954.50/x
  3. Step 3: Cross multiply
    460,890.63x = 636,031.71 × 256,954.50
  4. Step 4: Simplify right side
    460,890.63x = 163,431,210,027.20
  5. Step 5: Solve for x
    x = 163,431,210,027.20/460,890.63
  6. Step 6: Final answer
    x = 354,598.68

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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.