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Finding the Fourth Proportional to 316,572, 474,858 and 94,956

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Solution

The fourth proportional to 316,572, 474,858 and 94,956 is: 142,434

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,572 : 474,858 = 94,956 : x
  2. Step 2: Convert to fraction form
    316,572/474,858 = 94,956/x
  3. Step 3: Cross multiply
    316,572x = 474,858 × 94,956
  4. Step 4: Simplify right side
    316,572x = 45,090,616,248
  5. Step 5: Solve for x
    x = 45,090,616,248/316,572
  6. Step 6: Final answer
    x = 142,434

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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.