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Finding the Fourth Proportional to 538,325.25, 742,885.18 and 296,602.21

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Solution

The fourth proportional to 538,325.25, 742,885.18 and 296,602.21 is: 409,309.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,325.25 : 742,885.18 = 296,602.21 : x
  2. Step 2: Convert to fraction form
    538,325.25/742,885.18 = 296,602.21/x
  3. Step 3: Cross multiply
    538,325.25x = 742,885.18 × 296,602.21
  4. Step 4: Simplify right side
    538,325.25x = 220,341,386,164.25
  5. Step 5: Solve for x
    x = 220,341,386,164.25/538,325.25
  6. Step 6: Final answer
    x = 409,309.03

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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.