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Finding the Fourth Proportional to 656.51, 904.50 and 549.72

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Solution

The fourth proportional to 656.51, 904.50 and 549.72 is: 757.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.51 : 904.50 = 549.72 : x
  2. Step 2: Convert to fraction form
    656.51/904.50 = 549.72/x
  3. Step 3: Cross multiply
    656.51x = 904.50 × 549.72
  4. Step 4: Simplify right side
    656.51x = 497,221.74
  5. Step 5: Solve for x
    x = 497,221.74/656.51
  6. Step 6: Final answer
    x = 757.38

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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.