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Finding the Fourth Proportional to 538,307.21, 742,857.08 and 293,302.17

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Solution

The fourth proportional to 538,307.21, 742,857.08 and 293,302.17 is: 404,753.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,307.21 : 742,857.08 = 293,302.17 : x
  2. Step 2: Convert to fraction form
    538,307.21/742,857.08 = 293,302.17/x
  3. Step 3: Cross multiply
    538,307.21x = 742,857.08 × 293,302.17
  4. Step 4: Simplify right side
    538,307.21x = 217,881,592,097.35
  5. Step 5: Solve for x
    x = 217,881,592,097.35/538,307.21
  6. Step 6: Final answer
    x = 404,753.25

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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.