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Finding the Fourth Proportional to 504.68, 696.47 and 283.61

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Solution

The fourth proportional to 504.68, 696.47 and 283.61 is: 391.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.68 : 696.47 = 283.61 : x
  2. Step 2: Convert to fraction form
    504.68/696.47 = 283.61/x
  3. Step 3: Cross multiply
    504.68x = 696.47 × 283.61
  4. Step 4: Simplify right side
    504.68x = 197,526.18
  5. Step 5: Solve for x
    x = 197,526.18/504.68
  6. Step 6: Final answer
    x = 391.39

Related Problems

Find fourth proportional to 252.34, 348.23 and 141.81
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Double scale
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1.5x scale

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.