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Finding the Fourth Proportional to 611,348.76, 916,728.03 and 256,267.44

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Solution

The fourth proportional to 611,348.76, 916,728.03 and 256,267.44 is: 384,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,348.76 : 916,728.03 = 256,267.44 : x
  2. Step 2: Convert to fraction form
    611,348.76/916,728.03 = 256,267.44/x
  3. Step 3: Cross multiply
    611,348.76x = 916,728.03 × 256,267.44
  4. Step 4: Simplify right side
    611,348.76x = 234,927,545,424.34
  5. Step 5: Solve for x
    x = 234,927,545,424.34/611,348.76
  6. Step 6: Final answer
    x = 384,277.45

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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.